ᐅ KfW40 house offer with heat pump and mechanical ventilation with heat recovery— is it worth it?
Created on: 25 May 2019 21:19
Q
querys_
Hello everyone,
Today I received a house offer from a prefabricated house supplier.
They list the exhaust air heat pump Nibe F 750 with supply air module SAM 40 as the heating system. The maximum building heating load is said to be 7.5 kW.
Additionally, there is underfloor heating and a 180 L (48 gallon) domestic hot water storage tank.
The house is located near Cologne/Bonn Airport (for climate reference) and is about 120 m² (1,290 sq ft) in size (excluding the basement).
I have already read a lot of negative things about exhaust air heat pumps, so I want to ask again if this system is any good, and if not, what would be an alternative and how much more would that cost?
Thank you very much!
Today I received a house offer from a prefabricated house supplier.
They list the exhaust air heat pump Nibe F 750 with supply air module SAM 40 as the heating system. The maximum building heating load is said to be 7.5 kW.
Additionally, there is underfloor heating and a 180 L (48 gallon) domestic hot water storage tank.
The house is located near Cologne/Bonn Airport (for climate reference) and is about 120 m² (1,290 sq ft) in size (excluding the basement).
I have already read a lot of negative things about exhaust air heat pumps, so I want to ask again if this system is any good, and if not, what would be an alternative and how much more would that cost?
Thank you very much!
What does this have to do with the thread again?
We should leave it at that before you talk yourself into trouble.
To get back to the car, the heating load has about as much to do with energy consumption as the manufacturer’s figures have with what you actually pay at the gas station. A 5 Series won’t turn into a Prius because of that.
We should leave it at that before you talk yourself into trouble.
To get back to the car, the heating load has about as much to do with energy consumption as the manufacturer’s figures have with what you actually pay at the gas station. A 5 Series won’t turn into a Prius because of that.
In the end, I am definitely more knowledgeable than before.
AWP = no go!
LWWP = good
If the energy values are as promised on paper, it should be feasible with electricity, and I can save myself the gas connection.
Whether to install solar thermal panels or possibly photovoltaic panels on the roof later is something I can still consider.
AWP = no go!
LWWP = good
If the energy values are as promised on paper, it should be feasible with electricity, and I can save myself the gas connection.
Whether to install solar thermal panels or possibly photovoltaic panels on the roof later is something I can still consider.
B
boxandroof27 May 2019 21:44querys_ schrieb:
Whether to install solar thermal panels or possibly photovoltaic panels on the roof is something I can decide later. This is straightforward as well: solar thermal systems are generally not recommended—especially in combination with heat pumps. Photovoltaic systems are almost always cost-effective as long as subsidies are still available, regardless of the heating system.
Lumpi_LE schrieb:
What does this have to do with the thread now?
We should leave it at that before you talk yourself into trouble. That has to do with your inconsistent argument.
But nice try.
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