Condenser Boilers Types
what is a condensing boiler?
This is not really a specific brand or product, the condensing aspect is really referring to the processes the boiler uses to increase its efficiency.
By minimising heat loss through a series of design features, they use the latent heat of water vapour produced from burning natural gas to increase efficiency.
In other words, a condenser boiler reduces the amount of fuel being used by “recycling” the waste produced during the heating process.
With a regular non-condenser the fuel (normally natural gas), when burned, gets passed through a heat exchanger in which the heat is transferred to the water supply thereby increasing its temperature. During this process water vapour is produced and non-condensing designs eject this water vapour and waste the potential.
This is the reverse for a modern condensing model where these gasses are allowed to rise through a primary heat exchanger to a secondary unit which extracts more heat from the water vapour and helps increase the efficiency of the device from around 70% for an older boiler up to around 90 or 95% for new models.