ᐅ Installation of an Air-to-Water Heat Pump – Is This Setup Correct?
Created on: 6 Jun 2020 13:58
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Mertha257
Hello dear forum members,
We have been considering the installation location for our planned air-to-water heat pump for several days now. It is intended to be placed on the east side of the house, specifically in the gap between the bay window wall and the back wall of the garage (see image).
The discharge direction would be toward the east, away from the house, but after about 3 meters (10 feet) there is the neighbor’s garage/garden shed.
After researching various manufacturers, the heat pump fits in this space, as the minimum clearances from walls at the back and sides range between 15–40 cm (6–16 inches), which we can achieve.
However, I have two concerns:
1.) Possible thermal short-circuit: Given the enclosure by the bay window, our own garage rear wall, and the neighboring building, will the air-to-water heat pump be able to discharge the used, cooler air effectively enough and far enough so that sufficient fresh, warm air can flow to the intake? I do not want to compromise the efficiency of the heat pump due to the installation location. Unfortunately, there is no other feasible place to install it...
2.) Noise impact: It is often advised that air-to-water heat pumps should not be placed in wall niches or corners to avoid sound amplification/reflection. Although I plan to decouple the heat pump as much as possible and build a proper foundation, our bedroom is located on the first floor directly above this spot.
What are your thoughts on these two points? Do you have any experience regarding this? Point #1 is especially important to me, as I have found some good approaches to avoid or reduce noise.
Thank you very much for your advice!
Have a great weekend everyone!
We have been considering the installation location for our planned air-to-water heat pump for several days now. It is intended to be placed on the east side of the house, specifically in the gap between the bay window wall and the back wall of the garage (see image).
The discharge direction would be toward the east, away from the house, but after about 3 meters (10 feet) there is the neighbor’s garage/garden shed.
After researching various manufacturers, the heat pump fits in this space, as the minimum clearances from walls at the back and sides range between 15–40 cm (6–16 inches), which we can achieve.
However, I have two concerns:
1.) Possible thermal short-circuit: Given the enclosure by the bay window, our own garage rear wall, and the neighboring building, will the air-to-water heat pump be able to discharge the used, cooler air effectively enough and far enough so that sufficient fresh, warm air can flow to the intake? I do not want to compromise the efficiency of the heat pump due to the installation location. Unfortunately, there is no other feasible place to install it...
2.) Noise impact: It is often advised that air-to-water heat pumps should not be placed in wall niches or corners to avoid sound amplification/reflection. Although I plan to decouple the heat pump as much as possible and build a proper foundation, our bedroom is located on the first floor directly above this spot.
What are your thoughts on these two points? Do you have any experience regarding this? Point #1 is especially important to me, as I have found some good approaches to avoid or reduce noise.
Thank you very much for your advice!
Have a great weekend everyone!
M
Mertha2576 Jun 2020 23:41nordanney schrieb:
A quiet model is the most important choice. Then you stand next to it and don’t hear much more than the noise of a loud PC fan.
Don’t get stressed, just listen to it yourself. Many installers will take you to customer reference systems. Thanks, nordanney! But from your perspective, that probably doesn’t completely relieve the concern that our installation location might be acoustically challenging, does it?
I don’t really want to place it facing the street or the front entrance. That would look somewhat odd, and in the end, the exhaust direction would be towards the sidewalk/path leading to the front door at our place.
None of that is really ideal...
S
Strahleman7 Jun 2020 00:28Would an alternative air-to-water heat pump that consists only of an indoor unit be an option? For example, the LWCV series from Alpha Innotec?
This could avoid the issue of correctly installing the outdoor unit.
This could avoid the issue of correctly installing the outdoor unit.
M
Mertha2577 Jun 2020 07:58Strahleman schrieb:
Would an alternative air-to-water heat pump that consists of only an indoor unit be an option? For example, the LWCV series from Alpha Innotec?
This could potentially avoid the issue of properly installing the outdoor unit.Thank you, Strahleman! I’ll start looking for user reviews. After 15 minutes, I haven’t found much yet, not even here in the forum.Do you have experience using this device?
I definitely don’t want to bring a larger noise source right next to the house, especially since our bedroom is located above the utility room.
T
T_im_Norden7 Jun 2020 08:20You are essentially creating a kind of wind tunnel there.
The outgoing air hits the opposite garage wall and is deflected and pushed back.
Your neighbor’s wall, as well as your left wall, are constantly being cooled down.
I don’t think that is a good location.
The outgoing air hits the opposite garage wall and is deflected and pushed back.
Your neighbor’s wall, as well as your left wall, are constantly being cooled down.
I don’t think that is a good location.
I wouldn’t bring the noise source into the house. That won’t improve anything.
What heating capacity should the heat pump have (heating load calculation)? Are there budget restrictions (the most expensive ones are usually the quietest)? Depending on that, I might be able to offer some recommendations.
Best regards, Karl
What heating capacity should the heat pump have (heating load calculation)? Are there budget restrictions (the most expensive ones are usually the quietest)? Depending on that, I might be able to offer some recommendations.
Best regards, Karl
M
Mertha2577 Jun 2020 09:38T_im_Norden schrieb:
You’re creating a kind of wind tunnel there.
The outgoing air hits the opposite garage wall, where it is redirected and pushed back.
Your neighbor’s wall, as well as your left wall, will be constantly cooled down.
I don’t think that’s a good location. Thanks for the comment, I’m afraid you are right.
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