ᐅ Air-to-water heat pump + controlled indoor ventilation system (central ventilation unit)
Created on: 3 Nov 2020 19:20
E
exto1791
Hello everyone,
Here are some brief details from our side:
- KFW 55 single-family house with 160m² (1,722 sq ft) and basement
- 2 full storeys with a hipped roof
- Currently 2 people – hopefully 4 people in a few years
We are close to signing the contract but still very uncertain about one topic because we have received very little input in this area.
It concerns the models and integration of our air-to-water heat pump and the mechanical ventilation system with heat recovery (central ventilation system):
The following options were offered by our general contractor:
Option 1:
- Compact unit – mechanical ventilation with heat recovery + air-to-water heat pump in one device --> Brand/Model: Tecalor THZ 504 SOL
--> The air-to-water heat pump is included in the house price --> additional costs of €8,000 (for the mechanical ventilation system) would apply if we choose this unit.
Option 2:
- Air-to-water heat pump installed outdoors + central ventilation system as a separate unit --> Brand/Model air-to-water heat pump: Tecalor TTL 7.6 ACS
--> The air-to-water heat pump is included in the house price --> additional costs of €12,000 (for the mechanical ventilation system) would apply --> Here we are apparently free to choose the ventilation model – we would have to see what the trade offers us.
Option 3:
- Air-to-water heat pump installed indoors + central ventilation system as a separate unit --> Brand/Model air-to-water heat pump: Tecalor TTL 9.5 I
--> The air-to-water heat pump is included in the house price --> additional costs of €12,000 (for the mechanical ventilation system) would apply --> Here we are apparently free to choose the ventilation model – we would have to see what the trade offers us.
Does anyone have experience with the general differences between indoor and outdoor installations? Which is better? Both models seem to be at the same price.
Both are supposed to achieve a seasonal performance factor (SPF) of 4.5 and are eligible for government subsidies under BAFA.
Does anyone have experience specifically with these devices?
Is €12,000 a reasonable estimate for the mechanical ventilation system? Will this get me a good system? Are there any recommended models or manufacturers for this?
Also the question arises:
--> Are these “compact units” actually any good? Does anyone know this device? Is this the “future”? This option would effectively save us €4,000.
Here are some brief details from our side:
- KFW 55 single-family house with 160m² (1,722 sq ft) and basement
- 2 full storeys with a hipped roof
- Currently 2 people – hopefully 4 people in a few years
We are close to signing the contract but still very uncertain about one topic because we have received very little input in this area.
It concerns the models and integration of our air-to-water heat pump and the mechanical ventilation system with heat recovery (central ventilation system):
The following options were offered by our general contractor:
Option 1:
- Compact unit – mechanical ventilation with heat recovery + air-to-water heat pump in one device --> Brand/Model: Tecalor THZ 504 SOL
--> The air-to-water heat pump is included in the house price --> additional costs of €8,000 (for the mechanical ventilation system) would apply if we choose this unit.
Option 2:
- Air-to-water heat pump installed outdoors + central ventilation system as a separate unit --> Brand/Model air-to-water heat pump: Tecalor TTL 7.6 ACS
--> The air-to-water heat pump is included in the house price --> additional costs of €12,000 (for the mechanical ventilation system) would apply --> Here we are apparently free to choose the ventilation model – we would have to see what the trade offers us.
Option 3:
- Air-to-water heat pump installed indoors + central ventilation system as a separate unit --> Brand/Model air-to-water heat pump: Tecalor TTL 9.5 I
--> The air-to-water heat pump is included in the house price --> additional costs of €12,000 (for the mechanical ventilation system) would apply --> Here we are apparently free to choose the ventilation model – we would have to see what the trade offers us.
Does anyone have experience with the general differences between indoor and outdoor installations? Which is better? Both models seem to be at the same price.
Both are supposed to achieve a seasonal performance factor (SPF) of 4.5 and are eligible for government subsidies under BAFA.
Does anyone have experience specifically with these devices?
Is €12,000 a reasonable estimate for the mechanical ventilation system? Will this get me a good system? Are there any recommended models or manufacturers for this?
Also the question arises:
--> Are these “compact units” actually any good? Does anyone know this device? Is this the “future”? This option would effectively save us €4,000.
P
pagoni20205 Nov 2020 15:08Snowy36 schrieb:
I’d rather bother the neighbors outside in winter than myself inside. But in my case, the distance to the neighbor’s house is about 5-6m (16-20 feet) outside, and it’s not that loud anyway. Your neighbor probably sees it the other way around…..
Snowy36 schrieb:
As I said, a 6m (20 feet) distance… whoever needs to place it right in front of the neighbor’s terrace should do it differently… We will probably place the outdoor unit behind our carport. There is about 7-8m (23-26 feet) of space to the neighbor on the side. And directly in the "fan direction" there is significantly more. Still, I’m concerned about it.
exto1791 schrieb:
To be honest, I have no idea how loud these units are 😀 From the technical datasheets, it’s about 55dB. Not exactly quiet, which is why I’m even leaning towards indoor installation.
Our advantage is that the air-to-water heat pump is planned to be installed in our basement. Usually, it won’t bother anyone there and is nicely tucked away 😀 Are you planning to add special soundproofing in the basement? Otherwise, the noise will carry throughout the house. You’ll need soundproof doors and interior walls made from calcium silicate blocks. Otherwise, it won’t work.
exto1791 schrieb:
Honestly, I have no idea how loud these units are 😀 From what I read in the technical datasheets, they are around 55 dB. That’s not exactly quiet, so I’m actually leaning towards installing it indoors.
Our advantage is that the air-to-water heat pump is supposed to be in our basement. Usually, it doesn’t bother anyone there and is nicely tucked away 😀 Another advantage of the THZ 504 is, of course, the government subsidy for the controlled ventilation system, since it’s integrated. Ah… tough decision 🙂
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