How They Work
Each manufacturer is a bit different with their build but in general they are very similar to a tankless.
A condensing combi-boiler system will employ two heat exchangers, an integrated boiler pump, domestic hot water outlet, flat plate heat exchanger for domestic hot water, heating loop supply.
A combi-system is nearly identical to your conventional tankless but with only a few distinctions.
- Complete separation of heating water/glycol
- Upgraded boiler pump
- Heating system auto fill
- Advanced integrated control panel