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.
Snowy36 schrieb:
I’d rather bother the neighbors outside in winter than myself inside. But my neighbor’s house is also 5-6 m (16-20 ft) away outside, and it’s not that loud anyway.Which air-to-water heat pump do you have?
Our heat pump has been running for a short time now. I’m really pleasantly surprised at how quiet the outdoor unit is. It just makes a little gurgling sound. The neighbor’s kitchen extractor fan is at least ten times louder.
If you find the technical aspect lacking here in the forum, you might want to check out another forum. There’s one with “house” and “technology” in the name 😉
If you find the technical aspect lacking here in the forum, you might want to check out another forum. There’s one with “house” and “technology” in the name 😉
@exto1791 Have you made any progress in the decision phase? Why are you actually going for the 7.6 one? Wouldn't the 5.6 be enough? We have similar parameters, and the 5.6 was initially included in our scope of work (subject to the heating load calculation), which was my request since the previous "old" 4.5 ACS was listed before.
pat2019 schrieb:
@exto1791 Have you made any progress in the decision phase? Why are you actually choosing the 7.6 kW one? Wouldn’t the 5.6 kW option be enough? We have similar parameters, and the 5.6 kW was initially included in our building specifications (subject to the heating load calculation) — or rather, it was my request since the "old" 4.5 ACS was listed before. Not yet... We are now slowly moving towards signing the contract with our general contractor. At that stage, we will gather more information. I think that after signing the contract, we will sit down with the heating installer together and decide on a product collaboratively.
Ötzi Ötztaler9 Nov 2020 07:07
Snowy36 schrieb:
I have a modulating Novelan ... hoped it would be extra quiet because of that ...Which model do you have? Especially when it comes to perception at 6m (20 feet) distance, a quieter but longer-running heat pump has the advantage.Similar topics