TEAM CONSTRUCT : The condensing boiler, how does « it work? »
TEAM CONSTRUCT : Included in all our houses!
A simple principle: recover the steam and its heat rather than waste it! When steam is transformed into liquid, heat is recovered, and therefore energy!
It is simply the fundamental principle of condensation in heating: to recover the energy contained in the water vapour present in the exhaust fumes.
Before they are exhausted via the flue, the very hot fumes produced by gas combustion cross a condensing heat exchanger inside which circulates the central-heating water.
The water vapour contained in the exhaust fumes condenses on the heat exchanger, that recovers the so-called latent heat. The exhaust fumes then leave the flue at approximately 70°C instead of 200°C with a traditional boiler. These fumes then heat the water of the central heating system "for free" on top of the heat of combustion. The water from the condensation process (condensate) is drained to the sewer.
TEAM CONSTRUCT : Very economical boilers!
Condensing boilers are more efficient than traditional boilers because they recover the energy contained in the exhaust fumes.
Condensation significantly improves the efficiency of the boilers. Natural gas-fired condensing boilers are 6 to 9% more efficient than high-efficiency boilers, while the efficiency gain for oil-fired boilers is 3 to 5%.
TEAM CONSTRUCT : Price: why are they more expensive to buy?
Because this type of installation produces slightly acidic condensation water, condensation boilers have to be made from a an aluminium-silicon alloy or from stainless steel.
Using these more expensive materials does however guarantee that these boilers will have a longer service life.
They also have the most efficient control equipment and components (sealed boilers, pre-mix burners and power modulation).
The reduction of your heating bill often allows the higher purchase cost to be absorbed.
You can also take advantage of available financial assistance to offset the added cost (renovation grants, energy bonuses and tax reductions).
The combination of a condensing boiler and natural gas guarantees a fuel bill reduced by up to 20 %. It is an immediately profitable investment.
Less polluting than petrol or coal, natural gas naturally suits condensing boilers. This solution limits waste discharge and contributes to a more rational use of energy.
Replacing an old boiler with a new condensing boiler can save 6,900 kg of CO2 per year, equivalent to the emissions of a car doing 49 000 km