ᐅ How much does a good new heat pump typically cost? Looking for experiences and insights!
Created on: 23 Feb 2021 09:57
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trx_type
Hi everyone, we are currently planning our housebuild quite intensively, and when it comes to choosing a heating system, we are considering using a heat pump. We have heard from friends that, in the long run, it can be more cost-effective because heating costs are reduced. However, these friends do not have one themselves yet; they are just thinking about it. What is your opinion on this? What should we consider? Would you recommend it? We are also thinking of getting advice soon from Vaillant, as they apparently have pretty good customer service. In general, I would appreciate any tips on this topic. Thanks in advance!
Bookstar schrieb:
Right now, for example, electric heating like heat pumps really annoy me. The house is at 21°C (70°F) and we're still freezing. You don't get that with pellet or gas heating. With those, you always get quick warmth in the house.
Luckily, we have a wood stove, which I'm heating up now 🙂 I lived for a little over 10 years in apartments with stoves. It was interesting as a child/teenager, and often quite cozy and warm.
But what does gas or pellet heating do with underfloor heating that suddenly makes it less sluggish?
What I experience with my heat pump is very slow regulation. During very cold periods, I assist with frequency lockout ranges, flow temperature boosts, or heating circuits (also because of the seasonal performance factor) to raise the flow temperature faster. After that, it can happily switch back to the relaxed control mode.
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taschenonkel20 May 2021 11:38taschenonkel schrieb:
We are currently renovating our single-family house, built in 1982, aiming for KFW-55EE or 75EE standard (still to be determined) and are also considering which heating system to choose. Today, we received a quote from the local heating contractor for a geothermal heat pump by Stiebel Eltron, just under 17 kW plus four boreholes for a total of 62,000 EUR. About half of that cost is for the excavation company, and the other half for the heating contractor.
I don’t yet have the comparison offers for the pellet system, but I think (or rather hope, based on what I’ve read so far) it will definitely be around 20,000 EUR cheaper. Given the price difference, I think we’ll go with the pellet system. We have about 240 m² (2,583 sq ft) of living space (of which 160 m² (1,722 sq ft) is underfloor heating) and 130 m² (1,399 sq ft) heated in the basement. Currently, we consume 35,000 kWh of heating oil per year and hope that after the renovation (new windows and doors, attic and blown-in insulation) our heating demand will drop to around 20,000 kWh. By the way, we have now decided on the pellet system (KWB Easyfire). The local heating contractor is asking just under 50,000 EUR for it. This includes a 6-ton (approximately 13,227 lb) underground tank in front of the house, an upgrade of our underfloor heating with new valves and digital control in each room individually, hydraulic balancing, and the retrofit of a domestic hot water circulation system. Since we are doing all this as part of an individual renovation roadmap when replacing an oil heating system, we receive a 55% subsidy. That means in the end we’ll pay about 22,500 EUR. I think this is a fair price for the upgrade! We are looking forward to it.
Best regards
4lpha0ne schrieb:
I lived for a little over 10 years in apartments with stoves. It was interesting as a child/teenager and often nicely warm.
But what does gas or pellet heating do to underfloor heating that makes it suddenly less sluggish?
What I experience with my heat pump is very slow regulation. During very cold periods, I support it by using frequency lockout ranges, flow temperature boosts, or radiator heaters (also because of the seasonal performance factor) to raise the flow temperature more quickly. After that, it can happily switch to relaxed regulation mode. With pellet gas systems, you can easily run a flow temperature of 35°C (95°F) instead of 30°C (86°F) with a heat pump. They also operate continuously, while the heat pump cycles based on return temperature and often runs without a buffer tank. This makes the technology extremely slow to respond. The heat pump principle works against comfort. My electrician already told me back then to install power outlets and electric heaters in the bathrooms because every one of his customers with a heat pump eventually came to him with that request. We haven’t done that so far, but occasionally a portable radiant heater is used in the bathroom.
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nordanney20 May 2021 13:29Bookstar schrieb:
The heat pump concept goes against comfort.What does the heat source of an underfloor heating system have to do with comfort?D
Deliverer20 May 2021 15:13Bookstar schrieb:
With pellet gas, you can easily run a supply temperature of 35°C (95°F) instead of 30°C (86°F) for a heat pump. It also runs continuously, while the heat pump cycles controlled by return temperature without a buffer tank. This makes the system extremely sluggish.That’s nonsense. With just a few clicks, your heat pump can also run at 35°C (95°F). And the hotter the heat source runs, the more frequently it has to cycle. So the heat pump actually cycles the least. The slow response of underfloor heating has nothing to do with this either.
If 21°C (70°F) feels too cold, I recommend setting it to 22°C (72°F) or 23°C (73°F). That should help. ;-)
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T_im_Norden20 May 2021 17:004lpha0ne schrieb:
What does gas/pellet heating do with underfloor heating that suddenly makes it less sluggish?
What I experience with my heat pump is very slow regulation. During very cold periods, I support it with frequency lockout zones, supply temperature boosts, or radiator heating (also because of the seasonal performance factor) to raise the supply temperature more quickly. After that, it can switch back to the relaxed control mode. That’s probably more due to your hydraulics or settings. My underfloor heating with BWT doesn’t require any intervention.
It keeps the indoor temperature accurate to the degree, whether it’s 3°C (37°F) or -15°C (5°F) outside.
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