Author Topic: Heat pump performance in cold weather.  (Read 8864 times)

Offline def

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Heat pump performance in cold weather.
« on: February 13, 2013, 05:03:17 PM »
My heat pump doesn't provide much heat as the outdoor temperature approaches 30 F. Is there a better gas for a heat pump that will improve the performance of heat pumps in lower temperatures?

 :thanks:

 :popcorn:
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Offline domain

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Re: Heat pump performance in cold weather.
« Reply #1 on: February 13, 2013, 05:06:10 PM »
Like different refrigerant be put in to your heatpump for better performance? LOL no. Your compressor and overall unit are dedicated to the refrigerant designed for it. Proper charge would help. :D

Offline def

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Re: Heat pump performance in cold weather.
« Reply #2 on: February 13, 2013, 08:43:33 PM »
OK, so a custom gas mix is out of the question.

I have a new 40# cylinder of R22 sitting in the garage. So, now all I need is some gauges to monitor pressure (vacuum) and fill the system to specification or to some level to optimize the cycle.

Is this something I should tackle myself? I understand the basics of refrigeration but have little experience other than filling the car with R134a from time to time.

Are there any how to videos anywhere that deal with this? Will I need to wait for hot weather to load the system correctly?

I understand that I could damage the system if I over fill or under fill it. Also, I plan to clean the evaporator coil and blow out the condensate drain line once I get into the air handler. Also, I am going to install a UV lamp in the air handler just before the evap coil to keep mold and mildew at bay.

So, give me your thoughts about these undertakings;

1- Go ahead. It sounds like your capable.

2- Your nuts. You have no idea what you're getting in to.

3- Call an ambulance before you begin work and have the EMTs standing by.

4- Stick to fixing your BMW motorcycle.

5- Call us once you recover from the explosions and electrical shocks.

6- Its easy. You'll do fine.

Please select one of the numbers for your response.

 :thanks:

 :popcorn:
« Last Edit: February 13, 2013, 08:45:18 PM by def »
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Offline lesguns

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Re: Heat pump performance in cold weather.
« Reply #3 on: February 13, 2013, 09:49:34 PM »
you need more auxillary heat.

Offline Patricio

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Re: Heat pump performance in cold weather.
« Reply #4 on: February 13, 2013, 10:56:04 PM »
Auxillary heat is the ticket for a heat pump in a mild climate.
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Offline def

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Re: Heat pump performance in cold weather.
« Reply #5 on: February 13, 2013, 11:39:03 PM »
Yes, I have electric heat strips...

So, I guess I'm just going to have to live with it..........wait, unless I go ground source
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Offline jumptrout51

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Re: Heat pump performance in cold weather.
« Reply #6 on: February 14, 2013, 06:29:37 AM »
What is the BTU of this H/P?
What size heat strips in KW?
Are they (heat strips) working?
What square footage is the house?
What brand and age of equipment?
The answer to your quest is above is 2 thru 5.
« Last Edit: February 14, 2013, 06:30:30 AM by jumptrout51 »
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Offline def

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Re: Heat pump performance in cold weather.
« Reply #7 on: February 14, 2013, 09:16:26 AM »
What is the BTU of this H/P? 3000BTU
What size heat strips in KW? Don't know but they do provide heat at low ambient temps (<15 deg. F)
Are they (heat strips) working? Yes.
What square footage is the house? 1550
What brand and age of equipment? Brand unknown but it was new with the house 5 years ago.
The answer to your quest is above is 2 thru 5. Hmm......not very encouraging.

 :-\  but  :thanks: anyway.
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Offline JWWebster

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Re: Heat pump performance in cold weather.
« Reply #8 on: February 14, 2013, 09:50:53 AM »
3000 btu would not even heat one room. You need 5000 btu per bedroom (basic rule of thumb)
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Offline def

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Re: Heat pump performance in cold weather.
« Reply #9 on: February 14, 2013, 10:13:58 AM »
3000 btu would not even heat one room. You need 5000 btu per bedroom (basic rule of thumb)

Mr. Webster, I made an error  :oops: (a rare ocurance). My H/P is 3 tons. You're correct, 3000 BTUs is....well, I can rub my hands together and get 3000BTUs.  ::)

Sorry
I used to repair RADAR then they discontinued vacuum tubes. Pity

 

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