20kw Wall Hung Gas Combi Boiler Compact for Apartments

For ordinary residential buildings of 80-150 square meters, choose 24KW. Choose 28KW or above for 150m2 or larger units. For homes in the south without insulation or with multiple bathrooms, increase power by 20% to 30%.

Most models include free basic installation but exclude special fees like high-altitude work and wall drilling. Auxiliary materials such as pipes and filters need to be purchased separately, costing around 1,000 yuan.

It cannot run at the same time. The hot water function starts first. The machine automatically switches between heating and hot water modes according to faucet usage, suspending heating temporarily when taking a bath.

First-class energy efficiency boilers, often condensing types, reach over 107% thermal efficiency. They save 15% to 20% on gas fees compared to ordinary boilers, making them cost-effective for long-term use.

Yes. For old or renovated houses, you can choose an open-air radiator system that does not damage walls or decoration. After ordering, you can book a master to measure and design the installation plan.