ᐅ Replacing an Old Heating System with a Heat Pump or Gas Boiler Combined with a Domestic Hot Water Heat Pump
Created on: 5 May 2022 10:01
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GePrest
Hello, my gas heating system (roof heating central unit) is 22 years old, as is the solar thermal system. The solar thermal system is no longer functioning properly. The first builder recommends demolishing both the heating system and the solar thermal system and installing a Weishaupt heat pump. He has been installing only Weishaupt products for several years. A second builder recommends renewing the gas boiler and additionally installing a domestic hot water heat pump. A photovoltaic system has been commissioned with 9 Luxor ECO LINE HALF-CELLS M120/380W modules, which will be expanded by at least 3 modules when the solar thermal system is removed. The property is a mid-terrace house, fully equipped with radiators, with 106 m² (1,141 sq ft) of living space, housing 4 people, and approximately 10,000 kWh annual gas consumption. Postal code 76661, average annual temperature 11.1°C (52°F), standard outdoor temperature -10°C (14°F). According to the builder, the heat pump is to be installed on the roof. Regarding the hybrid system: can I install the heat pump for domestic hot water in the basement even though there is no existing hot water pipe? How extensive would the work be if additional piping needs to be installed? Installation in the attic is not possible.
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Deliverer24 May 2022 08:52Financially? Probably.
Ecologically? Definitely.
Politically? Absolutely.
Ecologically? Definitely.
Politically? Absolutely.
GePrest schrieb:
Offer for new gas boiler and storage tank with heating coil €15,900 including VAT plus €700 crane fee. Is this the current average price? That seems a bit expensive to me. Two years ago, we paid €5,300 including installation for the boiler (without the storage tank, which was brand new at the time). But if you have a lot of remodeling work to be done, it could be different. For us, the replacement was completed in one working day. You should have individual line items listed in the quote.
Have you already obtained several quotes?
FloHB123 schrieb:
That seems a bit expensive to me. Two years ago, we paid 5,300 EUR including installation for the boiler (without the storage tank, which was new at the time). But of course, if you have a lot of remodeling work, it’s different. For us, the replacement was done in one working day. You should have detailed line items in the quote.
Have you obtained several quotes yet?Quote from Heizungonline for Viessmann Vitodens 200 with Vitocell 100 storage tank 160l (42 gallons) complete around 9,000 EUR. It was requested through the tool on Viessmann’s site. The question is what additional costs will come? Deliverer schrieb:
Financially? Probably.
Ecologically? Definitely.
Politically? Absolutely.What does heat pump sizing 55/45/21 degrees mean?GePrest schrieb:
Quote for Heizungonline Viessmann Vitodens 200 with Vitocell 100 storage tank 160l (42 gallons) complete approx. 9000.
Requested via the Viessmann online tool. The question is, what else is needed?Why do you keep asking here on the forum? Just call several companies in your area, explain your situation, and ask them to provide a quote. Then (hopefully) someone will come to inspect the conditions on site. An online tool won’t be enough. The 9000 EUR is suitable for a standard installation, but what else is required can only be determined by someone who has seen your system at home.
FloHB123 schrieb:
Why do you keep asking here in the forum?
Just call several companies in your area, explain your problem, and ask them to provide a quote. Then (hopefully) someone will come by and assess the situation at your home.
An online tool won’t work for this. The €9000 (about $10,000) is for a standard installation, but any additional costs can only be determined by someone who has seen your system in person. It could be that there are experiences with the tool and a possible price surcharge. Isn’t that exactly what a forum is for? Tips, advice, experiences?
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