sizeing a mini split - Page 9

WyrTwister · 10-25-17, 09:58 AM

In standard residential split system central heat pump systems , the heat strip may be turned on during defrost to prevent colt air from being blown into the room .

I think our 2 MS HP's just run the indoor fan , very slowly during defrost .

As I said , neither have resistance heat . And they wewe both bottom line ( in cost ) or close to bottom line units .

Best of luck to you , :-)
Wyr
God bless

ecomodded · 10-25-17, 11:36 AM

That feature is nice it could be replicated using a electric heater and a temperature controller , when the temp probe senses cold air it could be set to kick on a electric heater via its circuit to keep some heat output going threw defrost. It would at least add heat to the room during the period.

With that being said I ordered a inkbird 308 temperature controller that I will use this winter to control a ventilation fan and run a electric heater when the heat pump is in its off mode.

Doing it this way will allow the heat pump (crappy portable one) to be left at a lower setting to stave off defrost cycles in cold weather.

ecomodded · 10-29-17, 11:13 PM

https://www.youtube.com/watch?v=gHFfZzNu3ZY&t=80

Fix for that pesky auxiliary heat

nokiasixteth · 12-29-17, 10:51 PM

Well next week the mini will be getting a brutal workout . It is supposed to dip into the teens here in ms . Strange weather were having . The mini performed flawless during the winter snow we had. If anyone is looking into buying a mini split . I have the figures on how i sized mine back on page 4. If anyone has a better cheaper way let me in on it As most know the higher the hspf rating the more efficient it will be at putting out heat.

nokiasixteth · 01-06-18, 10:11 PM

So its goin to look like i will be heating my other half of my place with mini split. I really dont want to use that inefficient oil heater but looks like i will have to bring the old thing out and sit it in my living room and shut off each room to get a reading and avg temp. Hopefully i will be able to do that around march . I have been having to heat it with wood for the past week or so . Its been awful cold .

10-25-17, 11:36 AM	#82
ecomodded Supreme EcoRenovator Join Date: Sep 2012 Location: Vancouver Island,Canada. Posts: 1,036 Thanks: 116 Thanked 100 Times in 87 Posts	That feature is nice it could be replicated using a electric heater and a temperature controller , when the temp probe senses cold air it could be set to kick on a electric heater via its circuit to keep some heat output going threw defrost. It would at least add heat to the room during the period. With that being said I ordered a inkbird 308 temperature controller that I will use this winter to control a ventilation fan and run a electric heater when the heat pump is in its off mode. Doing it this way will allow the heat pump (crappy portable one) to be left at a lower setting to stave off defrost cycles in cold weather. __________________ To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

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10-25-17, 09:58 AM	#81
WyrTwister Master EcoRenovator Join Date: Jun 2013 Location: USA Posts: 543 Thanks: 6 Thanked 44 Times in 38 Posts	In standard residential split system central heat pump systems , the heat strip may be turned on during defrost to prevent colt air from being blown into the room . I think our 2 MS HP's just run the indoor fan , very slowly during defrost . As I said , neither have resistance heat . And they wewe both bottom line ( in cost ) or close to bottom line units . Best of luck to you , :-) Wyr God bless

12-29-17, 10:51 PM	#84
nokiasixteth Journeyman EcoRenovator Join Date: Jan 2014 Location: richton ms Posts: 323 Thanks: 38 Thanked 13 Times in 12 Posts	Well next week the mini will be getting a brutal workout . It is supposed to dip into the teens here in ms . Strange weather were having . The mini performed flawless during the winter snow we had. If anyone is looking into buying a mini split . I have the figures on how i sized mine back on page 4. If anyone has a better cheaper way let me in on it As most know the higher the hspf rating the more efficient it will be at putting out heat.

01-06-18, 10:11 PM	#85
nokiasixteth Journeyman EcoRenovator Join Date: Jan 2014 Location: richton ms Posts: 323 Thanks: 38 Thanked 13 Times in 12 Posts	So its goin to look like i will be heating my other half of my place with mini split. I really dont want to use that inefficient oil heater but looks like i will have to bring the old thing out and sit it in my living room and shut off each room to get a reading and avg temp. Hopefully i will be able to do that around march . I have been having to heat it with wood for the past week or so . Its been awful cold .