ᐅ Groundwater heat pump with integrated ventilation and cooling?
Created on: 14 Dec 2013 17:42
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lb2235We are planning to build a wooden house in 2014.
The heating and domestic hot water will be provided by a groundwater heat pump (plus possibly self-consumption of photovoltaic electricity).
I want to have controlled ventilation with heat recovery in most rooms. The energy recovered could also be used for the domestic hot water.
At the same time, the pump should have an active cooling function. (The south-facing side will be fully glazed on the ground floor and upper floor.)
I have looked at several manufacturers but have not found a product that offers this combination. Viessmann seems to be the most likely option.
Has anyone already installed such a combination or can provide tips in this direction?
Thank you!
The heating and domestic hot water will be provided by a groundwater heat pump (plus possibly self-consumption of photovoltaic electricity).
I want to have controlled ventilation with heat recovery in most rooms. The energy recovered could also be used for the domestic hot water.
At the same time, the pump should have an active cooling function. (The south-facing side will be fully glazed on the ground floor and upper floor.)
I have looked at several manufacturers but have not found a product that offers this combination. Viessmann seems to be the most likely option.
Has anyone already installed such a combination or can provide tips in this direction?
Thank you!
M
merlin66714 Dec 2013 18:39To be honest, I don’t know of any product that combines everything.
I’m only familiar with heat recovery ventilation (HRV) plus domestic hot water from exhaust air heat pumps. Whether they are suitable for you depends on your specific circumstances.
If I were in your position, I would consider the following combinations:
A groundwater heat pump with active cooling.
Then a standard HRV system with a combination coil for heating and cooling, supplied by the heat pump as an additional heating circuit.
I’m only familiar with heat recovery ventilation (HRV) plus domestic hot water from exhaust air heat pumps. Whether they are suitable for you depends on your specific circumstances.
If I were in your position, I would consider the following combinations:
A groundwater heat pump with active cooling.
Then a standard HRV system with a combination coil for heating and cooling, supplied by the heat pump as an additional heating circuit.
Hello,
First, a solid basic assessment should be carried out (actual demand (output, energy) for heating and hot water, taking into account the mechanical ventilation with heat recovery).
Additionally, permits are usually required for brine heat pumps or groundwater heat pumps. Increasingly, operating permits are granted only for limited periods, which may cause issues after a few years! So first of all, clarify this point, as well as checking the suitability (water quality) at the location before moving on to more detailed matters such as manufacturers or specific units.
Furthermore, it might be that a groundwater heat pump is not economically viable.
Best regards
lb2235 schrieb:You shouldn’t put the cart before the horse!
We are planning to build a timber house in 2014.
The heating and domestic hot water will be provided by a groundwater heat pump (plus possibly self-consumption of photovoltaic electricity)…
First, a solid basic assessment should be carried out (actual demand (output, energy) for heating and hot water, taking into account the mechanical ventilation with heat recovery).
Additionally, permits are usually required for brine heat pumps or groundwater heat pumps. Increasingly, operating permits are granted only for limited periods, which may cause issues after a few years! So first of all, clarify this point, as well as checking the suitability (water quality) at the location before moving on to more detailed matters such as manufacturers or specific units.
Furthermore, it might be that a groundwater heat pump is not economically viable.
Best regards
Thanks for your opinion.
Basically, there is a ground water heat pump installed in the parents' house (5m (16 feet) away) as well. So the water quality is perfect.
We are also considering installing a mechanical ventilation system with heat recovery and using only infrared heaters in the rooms.
The question, however, will be how much electricity these units will consume.
With the ground water heat pump, I know what to expect since I have a reference value.
Basically, there is a ground water heat pump installed in the parents' house (5m (16 feet) away) as well. So the water quality is perfect.
We are also considering installing a mechanical ventilation system with heat recovery and using only infrared heaters in the rooms.
The question, however, will be how much electricity these units will consume.
With the ground water heat pump, I know what to expect since I have a reference value.
Hello,
For passive houses, this is certainly a reasonable basic option; for buildings with lower energy efficiency, less so—at best as a meaningful supplement.
In my designs, I often include infrared heating in bathrooms as a temporarily limited additional heating load for heat pump systems, since it hardly makes sense to overload the entire heat pump system year-round just for the few square meters of a bathroom used for about 2 hours per day ;-) This way, the otherwise additionally necessary auxiliary heating can be avoided!
Best regards.
lb2235 schrieb:These are initially good conditions regarding the fundamental suitability of a groundwater heat pump. However, this does not automatically mean it is suitable for a new building project.
...Basically. There is a groundwater heat pump installed in the parents’ house (5m (16 feet) away) as well. So the water quality is perfect.
lb2235 schrieb:The decisive factor here will mainly be the space heating loads! How high are they?
...and only infrared heaters in the rooms... The question will be how much electricity these devices will consume.
For passive houses, this is certainly a reasonable basic option; for buildings with lower energy efficiency, less so—at best as a meaningful supplement.
In my designs, I often include infrared heating in bathrooms as a temporarily limited additional heating load for heat pump systems, since it hardly makes sense to overload the entire heat pump system year-round just for the few square meters of a bathroom used for about 2 hours per day ;-) This way, the otherwise additionally necessary auxiliary heating can be avoided!
Best regards.
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