Hello, we own a 20-year-old house with a wall-mounted boiler.
Model: Sieger HG11.
Since our exhaust gases are vented through a wall connection rather than through the roof, the boiler’s hot water output was limited to a maximum of 24 kW.
Now our boiler is nearing the end of its service life, and before requesting multiple quotes, I wanted to kindly ask here what the cost might be.
A new wall-mounted unit is to be installed, preferably again with a wall vent. The local chimney inspector has approved this.
Our house has a heated area or living space of 110 m3 (3,885 ft3).
Annual gas consumption is approximately 11,000 kW.
Model: Sieger HG11.
Since our exhaust gases are vented through a wall connection rather than through the roof, the boiler’s hot water output was limited to a maximum of 24 kW.
Now our boiler is nearing the end of its service life, and before requesting multiple quotes, I wanted to kindly ask here what the cost might be.
A new wall-mounted unit is to be installed, preferably again with a wall vent. The local chimney inspector has approved this.
Our house has a heated area or living space of 110 m3 (3,885 ft3).
Annual gas consumption is approximately 11,000 kW.
B
Benutzer2005 Feb 2022 10:49Mabi2610 schrieb:
No, the Sieger HG11 is still a heat-value boiler without condensing technology.Right, HG instead of BG 🙄. So indeed without LAS and the final price will be higher. The boiler itself fits the price range at around €4,000.And that, even though condensing technology was standard 20 years ago...
Before I would invest an estimated optimized 9,500-10,000 kWh consumption per year in a 15,000-liter (4,000-gallon) air-to-water heat pump, I would also consider spending 5,000 liters (1,300 gallons) all-in on a modern gas condensing boiler.
Presumably, that is currently greener than coal-based electricity. 😉
Presumably, that is currently greener than coal-based electricity. 😉
Mycraft schrieb:
There is nothing to argue against that. Gas is definitely greener than electricity generated from hard coal and lignite, which still accounts for nearly 30% of the energy mix here. I have an extremely expensive brine-water heat pump myself (thanks to subsidies).
I just question the upfront costs in relation to consumption.
You shouldn’t underestimate these costs. The system costs more than the energy consumption for the next 15 years (approximate).
Heating and hot water consumption for 245m2 (2,640 sq ft) KfW40+ building is about 1,500 kWh electricity per year (grid supply).
System cost after subsidies (with substantial own labor) around 13,000.
A gas boiler with gas connection would have cost me about 6,000.
Therefore, gas would have been more economical.
KingJulien6 Feb 2022 08:11But, completely free of ideology:
Who says that gas will still be reliably available and affordable in 10 years or even just 5 years?
Electricity cannot become infinitely expensive; nothing works without it. Since 100% of the population is affected, there are simply limits. Given the current prevailing mindset around gas, I find that a risky bet.
Moreover, I can always produce and store electricity myself easily, but not gas.
Of course, the prerequisite is that you can afford the investment now.
However, the suggestion of a heat pump is justified; the original poster apparently has not yet looked into the technology.
Who says that gas will still be reliably available and affordable in 10 years or even just 5 years?
Electricity cannot become infinitely expensive; nothing works without it. Since 100% of the population is affected, there are simply limits. Given the current prevailing mindset around gas, I find that a risky bet.
Moreover, I can always produce and store electricity myself easily, but not gas.
Of course, the prerequisite is that you can afford the investment now.
However, the suggestion of a heat pump is justified; the original poster apparently has not yet looked into the technology.
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