11,000 BTU DX GEO Heating - Page 16

MEMPHIS91 · 01-02-16, 09:43 PM

I assure you that ever post you have made gave me a AHA! moment. And I then scratch my head for several hours/days to figure out what I didn't understand. So again I say thank you.

Yes I know a larger compressor will change everything. But I do not believe this system is capable of doing what I really need it to with the 7,500btu. I have my eyes on a 9,900btu 3/4hp 115V 60Hertz 51LRA beauty. Most my real tuning should probably wait til then. I was just getting a good fill of things and a decent charge because temps have been colder lately. Low of 23F tonight.
I fill that one day I will be digging around the water tank in order to insulate it because heating the water is much easier and more important than air temp.
I know that the evap can handle the larger compressor. And I can always add another coil in both the water or air condenser if needed. I have come this far I don't know why I would settle for less.
Since this system is heating only, meaning no running at all during the summer, is finding the critical charge that important? I am guessing it will run almost 3/4 to all night tonight to keep up.
I guess I don't understand why the critical point is needed other than for safety. I have a 345psi shut off ready to braze on when I get the larger compressor.
I do understand that I should tune everything to the air side though. Because the water loop will always run less head pressure.

Thanks again man

jeff5may · 01-02-16, 10:32 PM

Some generalized info:

Safety and quality run together. A high-quality job is safe by nature.

A safety interlock is nice, but a design that doesn't need one is better.

Your 7500 btu compressor could quite possibly put out 9900 btu into a better condenser.

A 9900 btu compressor might not move 9900 btu through your existing condenser. It will definitely gobble up more power.

A 9900 btu compressor might move 12000 btu into a much better condenser.

Whatever happens, the darn thing already works way better than a 1500 watt aquarium heater.

MEMPHIS91 · 01-03-16, 10:22 AM

Yeah that is what I was thinking, until I max out my evap, the condenser is the only thing limiting compressor size. Not that I want something too big and it cycle on and off a bunch but with 400 gallons of water I don't see that happening.

MEMPHIS91 · 01-03-16, 01:09 PM

The test data from 4" from the bottom of the pond is in! Note we have had 3 nights in a row of less than 30F nights.

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Number                        001       

Interval                      1:0:0 H:M:S

Delay Time                    0.0 H

Data Sum                      71

TemperatureMaximum            89.2°F

TemperatureMinimum            49.3°F

TemperatureAverage            52.7°F

TemperatureAlarm Upper Limit  140.0°F

TemperatureAlarm Lower Limit  -22.0°F

Start Time                    2015-12-31 14:07:17

End Time                      2016-01-03 12:07:17

Date Format                   yyyy-MM-dd HH:mm:ss

Temperature Unit              °F



Number            Time            Temperature°F

1        2015-12-31 14:07:17        69.3

2        2015-12-31 15:07:17        52.3

3        2015-12-31 16:07:17        52.3

4        2015-12-31 17:07:17        52.3

5        2015-12-31 18:07:17        52.3

6        2015-12-31 19:07:17        52.3

7        2015-12-31 20:07:17        52.3

8        2015-12-31 21:07:17        52.3

9        2015-12-31 22:07:17        52.3

10        2015-12-31 23:07:17        52.3

11        2016-01-01 00:07:17        52.3

12        2016-01-01 01:07:17        52.3

13        2016-01-01 02:07:17        52.3

14        2016-01-01 03:07:17        52.3

15        2016-01-01 04:07:17        52.3

16        2016-01-01 05:07:17        52.5

17        2016-01-01 06:07:17        52.3

18        2016-01-01 07:07:17        52.3

19        2016-01-01 08:07:17        52.5

20        2016-01-01 09:07:17        52.5

21        2016-01-01 10:07:17        52.5

22        2016-01-01 11:07:17        52.3

23        2016-01-01 12:07:17        52.5

24        2016-01-01 13:07:17        52.3

25        2016-01-01 14:07:17        52.3

26        2016-01-01 15:07:17        52.2

27        2016-01-01 16:07:17        52.2

28        2016-01-01 17:07:17        52.2

29        2016-01-01 18:07:17        52.2

30        2016-01-01 19:07:17        52.2

31        2016-01-01 20:07:17        52.2

32        2016-01-01 21:07:17        52

33        2016-01-01 22:07:17        52

34        2016-01-01 23:07:17        51.8

35        2016-01-02 00:07:17        51.8

36        2016-01-02 01:07:17        51.6

37        2016-01-02 02:07:17        51.6

38        2016-01-02 03:07:17        51.4

39        2016-01-02 04:07:17        51.3

40        2016-01-02 05:07:17        51.1

41        2016-01-02 06:07:17        51.1

42        2016-01-02 07:07:17        50.9

43        2016-01-02 08:07:17        50.9

44        2016-01-02 09:07:17        50.7

45        2016-01-02 10:07:17        50.4

46        2016-01-02 11:07:17        50.4

47        2016-01-02 12:07:17        50.5

48        2016-01-02 13:07:17        50.5

49        2016-01-02 14:07:17        50.5

50        2016-01-02 15:07:17        50.5

51        2016-01-02 16:07:17        50.5

52        2016-01-02 17:07:17        50.5

53        2016-01-02 18:07:17        50.5

54        2016-01-02 19:07:17        50.5

55        2016-01-02 20:07:17        50.5

56        2016-01-02 21:07:17        50.5

57        2016-01-02 22:07:17        50.7

58        2016-01-02 23:07:17        50.7

59        2016-01-03 00:07:17        50.5

60        2016-01-03 01:07:17        50.5

61        2016-01-03 02:07:17        50.4

62        2016-01-03 03:07:17        50.2

63        2016-01-03 04:07:17        50

64        2016-01-03 05:07:17        49.8

65        2016-01-03 06:07:17        49.8

66        2016-01-03 07:07:17        49.6

67        2016-01-03 08:07:17        49.6

68        2016-01-03 09:07:17        49.5

Looks like my other thermometer was better than I thought

MEMPHIS91 · 01-15-16, 08:58 PM

So I got the 53 LRA R22 10,000 BTU compress on.

Went ahead a made a larger condenser for the fish tank. I added another 20 feet of 1/4" painted black nontoxic copper tubing.

And I filled it with straight R290

Here are the numbers, first is the temp of the incoming and outgoing lines in the fish tank.
Next is the pressures and the suction temp (low number) and the line temp right before the txv.

So as you can see pretty low superheat and higher subcooling. Which means I'm slightly over charged, but I'm only pulling 775 watts. I only used .6 kwh last night compared 2.5-3.5 kwh with the same temps. My pond temp is about 45F.

Here is the data from the pond, some days got down to 15F.

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TemperatureMaximum            85.6°F

TemperatureMinimum            45°F

TemperatureAverage            47.1°F

TemperatureAlarm Upper Limit  140.0°F

TemperatureAlarm Lower Limit  -22.0°F

Start Time                    2012-01-01 23:06:51

End Time                      2012-01-10 19:06:51

Date Format                   yyyy-MM-dd HH:mm:ss

Temperature Unit              °F



Number            Time            Temperature°F

1        2012-01-01 23:06:51        85.6

2        2012-01-02 00:06:51        49.5

3        2012-01-02 01:06:51        49.5

4        2012-01-02 02:06:51        49.5

5        2012-01-02 03:06:51        49.5

6        2012-01-02 04:06:51        49.5

7        2012-01-02 05:06:51        49.5

8        2012-01-02 06:06:51        49.5

9        2012-01-02 07:06:51        49.3

10        2012-01-02 08:06:51        49.3

11        2012-01-02 09:06:51        48.9

12        2012-01-02 10:06:51        48.9

13        2012-01-02 11:06:51        48.7

14        2012-01-02 12:06:51        48.6

15        2012-01-02 13:06:51        48.6

16        2012-01-02 14:06:51        48.6

17        2012-01-02 15:06:51        48.6

18        2012-01-02 16:06:51        48.7

19        2012-01-02 17:06:51        48.7

20        2012-01-02 18:06:51        48.7

21        2012-01-02 19:06:51        48.7

22        2012-01-02 20:06:51        48.7

23        2012-01-02 21:06:51        48.7

24        2012-01-02 22:06:51        48.9

25        2012-01-02 23:06:51        48.9

26        2012-01-03 00:06:51        48.7

27        2012-01-03 01:06:51        48.7

28        2012-01-03 02:06:51        48.6

29        2012-01-03 03:06:51        48.6

30        2012-01-03 04:06:51        48.4

31        2012-01-03 05:06:51        48.2

32        2012-01-03 06:06:51        48.2

33        2012-01-03 07:06:51        48

34        2012-01-03 08:06:51        47.8

35        2012-01-03 09:06:51        47.7

36        2012-01-03 10:06:51        47.7

37        2012-01-03 11:06:51        47.3

38        2012-01-03 12:06:51        47.3

39        2012-01-03 13:06:51        47.3

40        2012-01-03 14:06:51        47.3

41        2012-01-03 15:06:51        47.3

42        2012-01-03 16:06:51        47.3

43        2012-01-03 17:06:51        47.3

44        2012-01-03 18:06:51        47.3

45        2012-01-03 19:06:51        47.3

46        2012-01-03 20:06:51        47.3

47        2012-01-03 21:06:51        47.3

48        2012-01-03 22:06:51        47.3

49        2012-01-03 23:06:51        47.5

50        2012-01-04 00:06:51        47.5

51        2012-01-04 01:06:51        47.5

52        2012-01-04 02:06:51        47.3

53        2012-01-04 03:06:51        47.3

54        2012-01-04 04:06:51        47.3

55        2012-01-04 05:06:51        47.3

56        2012-01-04 06:06:51        47.1

57        2012-01-04 07:06:51        47.1

58        2012-01-04 08:06:51        46.9

59        2012-01-04 09:06:51        46.9

60        2012-01-04 10:06:51        46.8

61        2012-01-04 11:06:51        46.6

62        2012-01-04 12:06:51        46.4

63        2012-01-04 13:06:51        46.2

64        2012-01-04 14:06:51        46.2

65        2012-01-04 15:06:51        46.2

66        2012-01-04 16:06:51        46.4

67        2012-01-04 17:06:51        46.4

68        2012-01-04 18:06:51        46.4

69        2012-01-04 19:06:51        46.4

70        2012-01-04 20:06:51        46.4

71        2012-01-04 21:06:51        46.4

72        2012-01-04 22:06:51        46.4

73        2012-01-04 23:06:51        46.4

74        2012-01-05 00:06:51        46.6

75        2012-01-05 01:06:51        46.6

76        2012-01-05 02:06:51        46.6

77        2012-01-05 03:06:51        46.6

78        2012-01-05 04:06:51        46.6

79        2012-01-05 05:06:51        46.6

80        2012-01-05 06:06:51        46.6

81        2012-01-05 07:06:51        46.6

82        2012-01-05 08:06:51        46.4

83        2012-01-05 09:06:51        46.4

84        2012-01-05 10:06:51        46.4

85        2012-01-05 11:06:51        46.4

86        2012-01-05 12:06:51        46.4

87        2012-01-05 13:06:51        46

88        2012-01-05 14:06:51        46.2

89        2012-01-05 15:06:51        46.2

90        2012-01-05 16:06:51        46.2

91        2012-01-05 17:06:51        46.2

92        2012-01-05 18:06:51        46.2

93        2012-01-05 19:06:51        46.2

94        2012-01-05 20:06:51        46.2

95        2012-01-05 21:06:51        46.4

96        2012-01-05 22:06:51        46.4

97        2012-01-05 23:06:51        46.4

98        2012-01-06 00:06:51        46.4

99        2012-01-06 01:06:51        46.4

100        2012-01-06 02:06:51        46.4

101        2012-01-06 03:06:51        46.4

102        2012-01-06 04:06:51        46.4

103        2012-01-06 05:06:51        46.4

104        2012-01-06 06:06:51        46.4

105        2012-01-06 07:06:51        46.4

106        2012-01-06 08:06:51        46.6

107        2012-01-06 09:06:51        46.6

108        2012-01-06 10:06:51        46.6

109        2012-01-06 11:06:51        46.6

110        2012-01-06 12:06:51        46.6

111        2012-01-06 13:06:51        46.6

112        2012-01-06 14:06:51        46.6

113        2012-01-06 15:06:51        46.6

114        2012-01-06 16:06:51        46.6

115        2012-01-06 17:06:51        46.8

116        2012-01-06 18:06:51        46.6

117        2012-01-06 19:06:51        46.8

118        2012-01-06 20:06:51        46.8

119        2012-01-06 21:06:51        46.8

120        2012-01-06 22:06:51        46.8

121        2012-01-06 23:06:51        46.8

122        2012-01-07 00:06:51        46.8

123        2012-01-07 01:06:51        46.8

124        2012-01-07 02:06:51        46.8

125        2012-01-07 03:06:51        46.8

126        2012-01-07 04:06:51        46.8

127        2012-01-07 05:06:51        46.8

128        2012-01-07 06:06:51        46.8

129        2012-01-07 07:06:51        46.8

130        2012-01-07 08:06:51        46.8

131        2012-01-07 09:06:51        46.9

132        2012-01-07 10:06:51        46.9

133        2012-01-07 11:06:51        46.9

134        2012-01-07 12:06:51        46.9

135        2012-01-07 13:06:51        46.9

136        2012-01-07 14:06:51        46.9

137        2012-01-07 15:06:51        46.9

138        2012-01-07 16:06:51        46.9

139        2012-01-07 17:06:51        46.9

140        2012-01-07 18:06:51        46.9

141        2012-01-07 19:06:51        46.9

142        2012-01-07 20:06:51        46.9

143        2012-01-07 21:06:51        46.9

144        2012-01-07 22:06:51        47.1

145        2012-01-07 23:06:51        47.1

146        2012-01-08 00:06:51        47.1

147        2012-01-08 01:06:51        47.1

148        2012-01-08 02:06:51        47.1

149        2012-01-08 03:06:51        47.1

150        2012-01-08 04:06:51        47.1

151        2012-01-08 05:06:51        47.1

152        2012-01-08 06:06:51        47.1

153        2012-01-08 07:06:51        47.1

154        2012-01-08 08:06:51        47.1

155        2012-01-08 09:06:51        47.1

156        2012-01-08 10:06:51        47.1

157        2012-01-08 11:06:51        47.3

158        2012-01-08 12:06:51        47.3

159        2012-01-08 13:06:51        47.3

160        2012-01-08 14:06:51        47.3

161        2012-01-08 15:06:51        47.3

162        2012-01-08 16:06:51        47.3

163        2012-01-08 17:06:51        47.3

164        2012-01-08 18:06:51        47.3

165        2012-01-08 19:06:51        47.3

166        2012-01-08 20:06:51        47.3

167        2012-01-08 21:06:51        47.3

168        2012-01-08 22:06:51        47.3

169        2012-01-08 23:06:51        47.3

170        2012-01-09 00:06:51        47.3

171        2012-01-09 01:06:51        47.3

172        2012-01-09 02:06:51        47.1

173        2012-01-09 03:06:51        47.1

174        2012-01-09 04:06:51        46.9

175        2012-01-09 05:06:51        46.8

176        2012-01-09 06:06:51        46.6

177        2012-01-09 07:06:51        46.4

178        2012-01-09 08:06:51        46.2

179        2012-01-09 09:06:51        46

180        2012-01-09 10:06:51        45.9

181        2012-01-09 11:06:51        45.7

182        2012-01-09 12:06:51        45.5

183        2012-01-09 13:06:51        45.5

184        2012-01-09 14:06:51        45.3

185        2012-01-09 15:06:51        45.5

186        2012-01-09 16:06:51        45.5

187        2012-01-09 17:06:51        45.5

188        2012-01-09 18:06:51        45.5

189        2012-01-09 19:06:51        45.5

190        2012-01-09 20:06:51        45.5

191        2012-01-09 21:06:51        45.5

192        2012-01-09 22:06:51        45.5

193        2012-01-09 23:06:51        45.5

194        2012-01-10 00:06:51        45.5

195        2012-01-10 01:06:51        45.5

196        2012-01-10 02:06:51        45.5

197        2012-01-10 03:06:51        45.5

198        2012-01-10 04:06:51        45.7

199        2012-01-10 05:06:51        45.5

200        2012-01-10 06:06:51        45.5

201        2012-01-10 07:06:51        45.5

202        2012-01-10 08:06:51        45.5

203        2012-01-10 09:06:51        45.5

204        2012-01-10 10:06:51        45.3

205        2012-01-10 11:06:51        45.3

206        2012-01-10 12:06:51        45.1

207        2012-01-10 13:06:51        45.3

208        2012-01-10 14:06:51        45

209        2012-01-10 15:06:51        45

210        2012-01-10 16:06:51        45.1

211        2012-01-10 17:06:51        45.1

212        2012-01-10 18:06:51        45.1

213        2012-01-10 19:06:51        45.1

So I'm happy with it for now, been crazy crazy busy this week with work and stuff. My main concern is the pond getting too cold...... I know the fish have to stay alive, so there must be some warm water in that pond somewhere. Maybe I'm not at the warmest spot? I thought the deepest would be the warmest, but the pond is slopped and the deepest point is right at the levee??? I'll be taking more readings in different places.

jeff5may · 01-15-16, 10:51 PM

Sweet! Those numbers look and sound a lot better. The extra pipe in the water made a world of difference.

Geo NR Gee · 01-16-16, 12:41 AM

I always remember that the warmth is near the surface and the farther down you get it gets cooler. At least from my days of swimming in the lakes as a kid.

Can you run a temp probe into the lake and check the different depths?

MEMPHIS91 · 01-16-16, 01:48 PM

Jeff, yes it sure did help.

Geo NR Gee, Yes that is what I thought too, but the uppermost layer is going to be affected by the cold more I believe, seeing as it freezes first. I have data loggers in a couple different places right now. I will need cold water in the summer, so seeing as I have more cooling days than heating days, I might be best staying close to the bottom.
I found this link, Heat in Lakes

MEMPHIS91 · 01-16-16, 10:25 PM

Another link http://fishandboat.com/anglerboater/...y02finding.pdf
that says that the water right under the ice is normally 39.2F. That to me is great news, my water temp should never be lower than that.
This pond is 17 feet deep. I have never seen more than 2 inches of ice on it and that only lasted for a few days. There is a lot of heat in 39.3F water.

01-02-16, 09:43 PM	#151
MEMPHIS91 Journeyman EcoRenovator Join Date: Apr 2015 Location: Oxford, MS USA Posts: 496 Thanks: 69 Thanked 87 Times in 61 Posts	I assure you that ever post you have made gave me a AHA! moment. And I then scratch my head for several hours/days to figure out what I didn't understand. So again I say thank you. Yes I know a larger compressor will change everything. But I do not believe this system is capable of doing what I really need it to with the 7,500btu. I have my eyes on a 9,900btu 3/4hp 115V 60Hertz 51LRA beauty. Most my real tuning should probably wait til then. I was just getting a good fill of things and a decent charge because temps have been colder lately. Low of 23F tonight. I fill that one day I will be digging around the water tank in order to insulate it because heating the water is much easier and more important than air temp. I know that the evap can handle the larger compressor. And I can always add another coil in both the water or air condenser if needed. I have come this far I don't know why I would settle for less. Since this system is heating only, meaning no running at all during the summer, is finding the critical charge that important? I am guessing it will run almost 3/4 to all night tonight to keep up. I guess I don't understand why the critical point is needed other than for safety. I have a 345psi shut off ready to braze on when I get the larger compressor. I do understand that I should tune everything to the air side though. Because the water loop will always run less head pressure. Thanks again man __________________ שְׁמַע יִשְׂרָאֵל ה' אֱלֹהֵינוּ ה' אֶחָד

01-03-16, 10:22 AM	#153
MEMPHIS91 Journeyman EcoRenovator Join Date: Apr 2015 Location: Oxford, MS USA Posts: 496 Thanks: 69 Thanked 87 Times in 61 Posts	Yeah that is what I was thinking, until I max out my evap, the condenser is the only thing limiting compressor size. Not that I want something too big and it cycle on and off a bunch but with 400 gallons of water I don't see that happening. __________________ שְׁמַע יִשְׂרָאֵל ה' אֱלֹהֵינוּ ה' אֶחָד

01-03-16, 01:09 PM	#154
MEMPHIS91 Journeyman EcoRenovator Join Date: Apr 2015 Location: Oxford, MS USA Posts: 496 Thanks: 69 Thanked 87 Times in 61 Posts	The test data from 4" from the bottom of the pond is in! Note we have had 3 nights in a row of less than 30F nights. PHP Code: RC-5 Data Logger User Information RC-5 Data Logger Number 001 Interval 1:0:0 H:M:S Delay Time 0.0 H Data Sum 71 TemperatureMaximum 89.2°F TemperatureMinimum 49.3°F TemperatureAverage 52.7°F TemperatureAlarm Upper Limit 140.0°F TemperatureAlarm Lower Limit -22.0°F Start Time 2015-12-31 14:07:17 End Time 2016-01-03 12:07:17 Date Format yyyy-MM-dd HH:mm:ss Temperature Unit °F Number Time Temperature°F 1 2015-12-31 14:07:17 69.3 2 2015-12-31 15:07:17 52.3 3 2015-12-31 16:07:17 52.3 4 2015-12-31 17:07:17 52.3 5 2015-12-31 18:07:17 52.3 6 2015-12-31 19:07:17 52.3 7 2015-12-31 20:07:17 52.3 8 2015-12-31 21:07:17 52.3 9 2015-12-31 22:07:17 52.3 10 2015-12-31 23:07:17 52.3 11 2016-01-01 00:07:17 52.3 12 2016-01-01 01:07:17 52.3 13 2016-01-01 02:07:17 52.3 14 2016-01-01 03:07:17 52.3 15 2016-01-01 04:07:17 52.3 16 2016-01-01 05:07:17 52.5 17 2016-01-01 06:07:17 52.3 18 2016-01-01 07:07:17 52.3 19 2016-01-01 08:07:17 52.5 20 2016-01-01 09:07:17 52.5 21 2016-01-01 10:07:17 52.5 22 2016-01-01 11:07:17 52.3 23 2016-01-01 12:07:17 52.5 24 2016-01-01 13:07:17 52.3 25 2016-01-01 14:07:17 52.3 26 2016-01-01 15:07:17 52.2 27 2016-01-01 16:07:17 52.2 28 2016-01-01 17:07:17 52.2 29 2016-01-01 18:07:17 52.2 30 2016-01-01 19:07:17 52.2 31 2016-01-01 20:07:17 52.2 32 2016-01-01 21:07:17 52 33 2016-01-01 22:07:17 52 34 2016-01-01 23:07:17 51.8 35 2016-01-02 00:07:17 51.8 36 2016-01-02 01:07:17 51.6 37 2016-01-02 02:07:17 51.6 38 2016-01-02 03:07:17 51.4 39 2016-01-02 04:07:17 51.3 40 2016-01-02 05:07:17 51.1 41 2016-01-02 06:07:17 51.1 42 2016-01-02 07:07:17 50.9 43 2016-01-02 08:07:17 50.9 44 2016-01-02 09:07:17 50.7 45 2016-01-02 10:07:17 50.4 46 2016-01-02 11:07:17 50.4 47 2016-01-02 12:07:17 50.5 48 2016-01-02 13:07:17 50.5 49 2016-01-02 14:07:17 50.5 50 2016-01-02 15:07:17 50.5 51 2016-01-02 16:07:17 50.5 52 2016-01-02 17:07:17 50.5 53 2016-01-02 18:07:17 50.5 54 2016-01-02 19:07:17 50.5 55 2016-01-02 20:07:17 50.5 56 2016-01-02 21:07:17 50.5 57 2016-01-02 22:07:17 50.7 58 2016-01-02 23:07:17 50.7 59 2016-01-03 00:07:17 50.5 60 2016-01-03 01:07:17 50.5 61 2016-01-03 02:07:17 50.4 62 2016-01-03 03:07:17 50.2 63 2016-01-03 04:07:17 50 64 2016-01-03 05:07:17 49.8 65 2016-01-03 06:07:17 49.8 66 2016-01-03 07:07:17 49.6 67 2016-01-03 08:07:17 49.6 68 2016-01-03 09:07:17 49.5 Looks like my other thermometer was better than I thought __________________ שְׁמַע יִשְׂרָאֵל ה' אֱלֹהֵינוּ ה' אֶחָד

01-15-16, 08:58 PM	#155
MEMPHIS91 Journeyman EcoRenovator Join Date: Apr 2015 Location: Oxford, MS USA Posts: 496 Thanks: 69 Thanked 87 Times in 61 Posts	So I got the 53 LRA R22 10,000 BTU compress on. Went ahead a made a larger condenser for the fish tank. I added another 20 feet of 1/4" painted black nontoxic copper tubing. And I filled it with straight R290 Here are the numbers, first is the temp of the incoming and outgoing lines in the fish tank. Next is the pressures and the suction temp (low number) and the line temp right before the txv. So as you can see pretty low superheat and higher subcooling. Which means I'm slightly over charged, but I'm only pulling 775 watts. I only used .6 kwh last night compared 2.5-3.5 kwh with the same temps. My pond temp is about 45F. Here is the data from the pond, some days got down to 15F. PHP Code: RC-5 Data Logger User Information RC-5 Data Logger Number 001 Interval 1:0:0 H:M:S Delay Time 0.0 H Data Sum 213 TemperatureMaximum 85.6°F TemperatureMinimum 45°F TemperatureAverage 47.1°F TemperatureAlarm Upper Limit 140.0°F TemperatureAlarm Lower Limit -22.0°F Start Time 2012-01-01 23:06:51 End Time 2012-01-10 19:06:51 Date Format yyyy-MM-dd HH:mm:ss Temperature Unit °F Number Time Temperature°F 1 2012-01-01 23:06:51 85.6 2 2012-01-02 00:06:51 49.5 3 2012-01-02 01:06:51 49.5 4 2012-01-02 02:06:51 49.5 5 2012-01-02 03:06:51 49.5 6 2012-01-02 04:06:51 49.5 7 2012-01-02 05:06:51 49.5 8 2012-01-02 06:06:51 49.5 9 2012-01-02 07:06:51 49.3 10 2012-01-02 08:06:51 49.3 11 2012-01-02 09:06:51 48.9 12 2012-01-02 10:06:51 48.9 13 2012-01-02 11:06:51 48.7 14 2012-01-02 12:06:51 48.6 15 2012-01-02 13:06:51 48.6 16 2012-01-02 14:06:51 48.6 17 2012-01-02 15:06:51 48.6 18 2012-01-02 16:06:51 48.7 19 2012-01-02 17:06:51 48.7 20 2012-01-02 18:06:51 48.7 21 2012-01-02 19:06:51 48.7 22 2012-01-02 20:06:51 48.7 23 2012-01-02 21:06:51 48.7 24 2012-01-02 22:06:51 48.9 25 2012-01-02 23:06:51 48.9 26 2012-01-03 00:06:51 48.7 27 2012-01-03 01:06:51 48.7 28 2012-01-03 02:06:51 48.6 29 2012-01-03 03:06:51 48.6 30 2012-01-03 04:06:51 48.4 31 2012-01-03 05:06:51 48.2 32 2012-01-03 06:06:51 48.2 33 2012-01-03 07:06:51 48 34 2012-01-03 08:06:51 47.8 35 2012-01-03 09:06:51 47.7 36 2012-01-03 10:06:51 47.7 37 2012-01-03 11:06:51 47.3 38 2012-01-03 12:06:51 47.3 39 2012-01-03 13:06:51 47.3 40 2012-01-03 14:06:51 47.3 41 2012-01-03 15:06:51 47.3 42 2012-01-03 16:06:51 47.3 43 2012-01-03 17:06:51 47.3 44 2012-01-03 18:06:51 47.3 45 2012-01-03 19:06:51 47.3 46 2012-01-03 20:06:51 47.3 47 2012-01-03 21:06:51 47.3 48 2012-01-03 22:06:51 47.3 49 2012-01-03 23:06:51 47.5 50 2012-01-04 00:06:51 47.5 51 2012-01-04 01:06:51 47.5 52 2012-01-04 02:06:51 47.3 53 2012-01-04 03:06:51 47.3 54 2012-01-04 04:06:51 47.3 55 2012-01-04 05:06:51 47.3 56 2012-01-04 06:06:51 47.1 57 2012-01-04 07:06:51 47.1 58 2012-01-04 08:06:51 46.9 59 2012-01-04 09:06:51 46.9 60 2012-01-04 10:06:51 46.8 61 2012-01-04 11:06:51 46.6 62 2012-01-04 12:06:51 46.4 63 2012-01-04 13:06:51 46.2 64 2012-01-04 14:06:51 46.2 65 2012-01-04 15:06:51 46.2 66 2012-01-04 16:06:51 46.4 67 2012-01-04 17:06:51 46.4 68 2012-01-04 18:06:51 46.4 69 2012-01-04 19:06:51 46.4 70 2012-01-04 20:06:51 46.4 71 2012-01-04 21:06:51 46.4 72 2012-01-04 22:06:51 46.4 73 2012-01-04 23:06:51 46.4 74 2012-01-05 00:06:51 46.6 75 2012-01-05 01:06:51 46.6 76 2012-01-05 02:06:51 46.6 77 2012-01-05 03:06:51 46.6 78 2012-01-05 04:06:51 46.6 79 2012-01-05 05:06:51 46.6 80 2012-01-05 06:06:51 46.6 81 2012-01-05 07:06:51 46.6 82 2012-01-05 08:06:51 46.4 83 2012-01-05 09:06:51 46.4 84 2012-01-05 10:06:51 46.4 85 2012-01-05 11:06:51 46.4 86 2012-01-05 12:06:51 46.4 87 2012-01-05 13:06:51 46 88 2012-01-05 14:06:51 46.2 89 2012-01-05 15:06:51 46.2 90 2012-01-05 16:06:51 46.2 91 2012-01-05 17:06:51 46.2 92 2012-01-05 18:06:51 46.2 93 2012-01-05 19:06:51 46.2 94 2012-01-05 20:06:51 46.2 95 2012-01-05 21:06:51 46.4 96 2012-01-05 22:06:51 46.4 97 2012-01-05 23:06:51 46.4 98 2012-01-06 00:06:51 46.4 99 2012-01-06 01:06:51 46.4 100 2012-01-06 02:06:51 46.4 101 2012-01-06 03:06:51 46.4 102 2012-01-06 04:06:51 46.4 103 2012-01-06 05:06:51 46.4 104 2012-01-06 06:06:51 46.4 105 2012-01-06 07:06:51 46.4 106 2012-01-06 08:06:51 46.6 107 2012-01-06 09:06:51 46.6 108 2012-01-06 10:06:51 46.6 109 2012-01-06 11:06:51 46.6 110 2012-01-06 12:06:51 46.6 111 2012-01-06 13:06:51 46.6 112 2012-01-06 14:06:51 46.6 113 2012-01-06 15:06:51 46.6 114 2012-01-06 16:06:51 46.6 115 2012-01-06 17:06:51 46.8 116 2012-01-06 18:06:51 46.6 117 2012-01-06 19:06:51 46.8 118 2012-01-06 20:06:51 46.8 119 2012-01-06 21:06:51 46.8 120 2012-01-06 22:06:51 46.8 121 2012-01-06 23:06:51 46.8 122 2012-01-07 00:06:51 46.8 123 2012-01-07 01:06:51 46.8 124 2012-01-07 02:06:51 46.8 125 2012-01-07 03:06:51 46.8 126 2012-01-07 04:06:51 46.8 127 2012-01-07 05:06:51 46.8 128 2012-01-07 06:06:51 46.8 129 2012-01-07 07:06:51 46.8 130 2012-01-07 08:06:51 46.8 131 2012-01-07 09:06:51 46.9 132 2012-01-07 10:06:51 46.9 133 2012-01-07 11:06:51 46.9 134 2012-01-07 12:06:51 46.9 135 2012-01-07 13:06:51 46.9 136 2012-01-07 14:06:51 46.9 137 2012-01-07 15:06:51 46.9 138 2012-01-07 16:06:51 46.9 139 2012-01-07 17:06:51 46.9 140 2012-01-07 18:06:51 46.9 141 2012-01-07 19:06:51 46.9 142 2012-01-07 20:06:51 46.9 143 2012-01-07 21:06:51 46.9 144 2012-01-07 22:06:51 47.1 145 2012-01-07 23:06:51 47.1 146 2012-01-08 00:06:51 47.1 147 2012-01-08 01:06:51 47.1 148 2012-01-08 02:06:51 47.1 149 2012-01-08 03:06:51 47.1 150 2012-01-08 04:06:51 47.1 151 2012-01-08 05:06:51 47.1 152 2012-01-08 06:06:51 47.1 153 2012-01-08 07:06:51 47.1 154 2012-01-08 08:06:51 47.1 155 2012-01-08 09:06:51 47.1 156 2012-01-08 10:06:51 47.1 157 2012-01-08 11:06:51 47.3 158 2012-01-08 12:06:51 47.3 159 2012-01-08 13:06:51 47.3 160 2012-01-08 14:06:51 47.3 161 2012-01-08 15:06:51 47.3 162 2012-01-08 16:06:51 47.3 163 2012-01-08 17:06:51 47.3 164 2012-01-08 18:06:51 47.3 165 2012-01-08 19:06:51 47.3 166 2012-01-08 20:06:51 47.3 167 2012-01-08 21:06:51 47.3 168 2012-01-08 22:06:51 47.3 169 2012-01-08 23:06:51 47.3 170 2012-01-09 00:06:51 47.3 171 2012-01-09 01:06:51 47.3 172 2012-01-09 02:06:51 47.1 173 2012-01-09 03:06:51 47.1 174 2012-01-09 04:06:51 46.9 175 2012-01-09 05:06:51 46.8 176 2012-01-09 06:06:51 46.6 177 2012-01-09 07:06:51 46.4 178 2012-01-09 08:06:51 46.2 179 2012-01-09 09:06:51 46 180 2012-01-09 10:06:51 45.9 181 2012-01-09 11:06:51 45.7 182 2012-01-09 12:06:51 45.5 183 2012-01-09 13:06:51 45.5 184 2012-01-09 14:06:51 45.3 185 2012-01-09 15:06:51 45.5 186 2012-01-09 16:06:51 45.5 187 2012-01-09 17:06:51 45.5 188 2012-01-09 18:06:51 45.5 189 2012-01-09 19:06:51 45.5 190 2012-01-09 20:06:51 45.5 191 2012-01-09 21:06:51 45.5 192 2012-01-09 22:06:51 45.5 193 2012-01-09 23:06:51 45.5 194 2012-01-10 00:06:51 45.5 195 2012-01-10 01:06:51 45.5 196 2012-01-10 02:06:51 45.5 197 2012-01-10 03:06:51 45.5 198 2012-01-10 04:06:51 45.7 199 2012-01-10 05:06:51 45.5 200 2012-01-10 06:06:51 45.5 201 2012-01-10 07:06:51 45.5 202 2012-01-10 08:06:51 45.5 203 2012-01-10 09:06:51 45.5 204 2012-01-10 10:06:51 45.3 205 2012-01-10 11:06:51 45.3 206 2012-01-10 12:06:51 45.1 207 2012-01-10 13:06:51 45.3 208 2012-01-10 14:06:51 45 209 2012-01-10 15:06:51 45 210 2012-01-10 16:06:51 45.1 211 2012-01-10 17:06:51 45.1 212 2012-01-10 18:06:51 45.1 213 2012-01-10 19:06:51 45.1 So I'm happy with it for now, been crazy crazy busy this week with work and stuff. My main concern is the pond getting too cold...... I know the fish have to stay alive, so there must be some warm water in that pond somewhere. Maybe I'm not at the warmest spot? I thought the deepest would be the warmest, but the pond is slopped and the deepest point is right at the levee??? I'll be taking more readings in different places. Attached Thumbnails __________________ שְׁמַע יִשְׂרָאֵל ה' אֱלֹהֵינוּ ה' אֶחָד

01-16-16, 01:48 PM	#158
MEMPHIS91 Journeyman EcoRenovator Join Date: Apr 2015 Location: Oxford, MS USA Posts: 496 Thanks: 69 Thanked 87 Times in 61 Posts	Jeff, yes it sure did help. Geo NR Gee, Yes that is what I thought too, but the uppermost layer is going to be affected by the cold more I believe, seeing as it freezes first. I have data loggers in a couple different places right now. I will need cold water in the summer, so seeing as I have more cooling days than heating days, I might be best staying close to the bottom. I found this link, Heat in Lakes __________________ שְׁמַע יִשְׂרָאֵל ה' אֱלֹהֵינוּ ה' אֶחָד

01-02-16, 10:32 PM	#152
jeff5may Supreme EcoRenovator Join Date: Jan 2010 Location: elizabethtown, ky, USA Posts: 2,431 Thanks: 432 Thanked 619 Times in 517 Posts	Some generalized info: Safety and quality run together. A high-quality job is safe by nature. A safety interlock is nice, but a design that doesn't need one is better. Your 7500 btu compressor could quite possibly put out 9900 btu into a better condenser. A 9900 btu compressor might not move 9900 btu through your existing condenser. It will definitely gobble up more power. A 9900 btu compressor might move 12000 btu into a much better condenser. Whatever happens, the darn thing already works way better than a 1500 watt aquarium heater.

01-15-16, 10:51 PM	#156
jeff5may Supreme EcoRenovator Join Date: Jan 2010 Location: elizabethtown, ky, USA Posts: 2,431 Thanks: 432 Thanked 619 Times in 517 Posts	Sweet! Those numbers look and sound a lot better. The extra pipe in the water made a world of difference.

01-16-16, 12:41 AM	#157
Geo NR Gee Journeyman EcoRenovator Join Date: Jan 2011 Location: Seattle Posts: 326 Thanks: 109 Thanked 23 Times in 18 Posts	I always remember that the warmth is near the surface and the farther down you get it gets cooler. At least from my days of swimming in the lakes as a kid. Can you run a temp probe into the lake and check the different depths?

01-16-16, 10:25 PM	#159
MEMPHIS91 Journeyman EcoRenovator Join Date: Apr 2015 Location: Oxford, MS USA Posts: 496 Thanks: 69 Thanked 87 Times in 61 Posts	Another link http://fishandboat.com/anglerboater/...y02finding.pdf that says that the water right under the ice is normally 39.2F. That to me is great news, my water temp should never be lower than that. This pond is 17 feet deep. I have never seen more than 2 inches of ice on it and that only lasted for a few days. There is a lot of heat in 39.3F water. __________________ שְׁמַע יִשְׂרָאֵל ה' אֱלֹהֵינוּ ה' אֶחָד