Forum: Appliances & Gadgets
02-18-17, 08:25 AM
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Replies: 7
Views: 5,890
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Forum: Conservation
10-30-16, 08:05 AM
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Replies: 13
Views: 12,940
Why not put in one of those Marey gas tankless...
Why not put in one of those Marey gas tankless units? Same $300, saves space, and no pilot light. Even vents with standard B vent. Gas valve DOES NOT modulate, that's' why it's only $300. You must...
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Forum: Appliances & Gadgets
07-03-16, 11:32 AM
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Replies: 4
Views: 5,430
Real World Ceiling Fan CFM
Has anybody done testing on delivered CFM of ceiling fans? Energy star has a test room where the blades are 40 5/8" from the ceiling, but this rarely happens in living rooms. Perhaps manufacturers...
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Forum: Conservation
06-12-16, 07:57 AM
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Replies: 6
Views: 6,627
Compressor amps are VERY sensitive to head...
Compressor amps are VERY sensitive to head pressure. Outdoor temp and total CFM are the major players, provided system charge or indoor airflow haven’t been messed with. Was the outdoor temp about...
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Forum: Appliances & Gadgets
06-04-16, 06:23 AM
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Replies: 9
Views: 7,363
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Forum: Appliances & Gadgets
05-30-16, 07:12 AM
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Replies: 9
Views: 7,363
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Forum: Conservation
05-22-16, 07:59 AM
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Replies: 12
Views: 16,287
Wait until utilities start implementing time of...
Wait until utilities start implementing time of use electric rates. They only need the grids full capacity for a few hours per week, and they will charge more during peak demand times. For a utility,...
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Forum: Conservation
05-22-16, 07:54 AM
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Replies: 12
Views: 16,287
There are 29.3KWH in a therm of gas. 29.3 x.11...
There are 29.3KWH in a therm of gas. 29.3 x.11 cents per KWH (do you stay under 600KWH most months?, most people don’t) = $3.22 Gas is 44 cents, you need a COP of 3.22/.44 = 7.3 for the HPWH to make...
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Forum: Renovations & New Construction
04-28-16, 08:32 PM
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Replies: 25
Views: 17,132
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Forum: Renovations & New Construction
04-28-16, 07:39 PM
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Replies: 25
Views: 17,132
Odds are VERY HIGH the 3 ton systems was only...
Odds are VERY HIGH the 3 ton systems was only delivering about 2 tons. This is why the house was hot, it wasn't because the 3 ton wasn't big enough. To get the full 3 tons ductwork and system charge...
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Forum: Renovations & New Construction
04-17-16, 07:53 AM
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Replies: 25
Views: 17,132
An easier way is to clock system run time on a...
An easier way is to clock system run time on a design day. Do so after thermostat has been at the same set point for at least 1 hour. In most houses you will find the furnace runs less than 50% (aka...
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Forum: Conservation
04-16-16, 08:04 AM
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Replies: 15
Views: 11,943
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Forum: Product Reviews
04-16-16, 07:13 AM
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Replies: 24
Views: 31,007
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Forum: Renovations & New Construction
04-16-16, 07:11 AM
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Replies: 25
Views: 17,132
AC oversizing penalty has 4 major factors:
...
AC oversizing penalty has 4 major factors:
1: Poor humidity removal during part load conditions. Those humid days in the 80's people will turn their AC down to 70 or below to get humidity relief....
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Forum: Lawn and Garden
04-16-16, 06:55 AM
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Replies: 30
Views: 39,690
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Forum: Appliances & Gadgets
04-06-16, 01:43 PM
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Replies: 9
Views: 7,363
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Forum: Conservation
03-15-16, 07:06 PM
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Replies: 14
Views: 14,605
To hit 85% you have to get the air/fuel ratio...
To hit 85% you have to get the air/fuel ratio exactly right. At 83% you start having condensation problems. You’re talking about modifications to get THREE PERCENT. In TEXAS you will NEVER see the...
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Forum: Conservation
03-15-16, 06:40 AM
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Replies: 14
Views: 14,605
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Forum: Conservation
03-13-16, 11:11 AM
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Replies: 14
Views: 14,605
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Forum: Appliances & Gadgets
12-14-15, 06:29 PM
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Replies: 19
Views: 11,899
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Forum: Appliances & Gadgets
12-04-15, 08:01 PM
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Replies: 2
Views: 3,657
Typical Pilot Light Fuel Consumption?
Want to make sure I got the estimate right:
Typical pilot is .018 orifice which burns 800BTU @ 3.5" gas pressure.
70 Therms per year to keep pilot lit.
For those that have actually measured...
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Forum: Appliances & Gadgets
08-20-15, 09:13 PM
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Replies: 12
Views: 10,399
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Forum: Appliances & Gadgets
07-19-15, 07:34 PM
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Replies: 5
Views: 4,713
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Forum: Lighting
06-21-15, 08:02 AM
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Replies: 24
Views: 26,329
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Forum: Product Reviews
05-17-15, 12:19 PM
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Replies: 24
Views: 31,007
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