A Technical Perspective

ENERGYCATCHER© INNOVATION

One energy source that has remained unquestioned and untouched is the wasted energy (hot fumes) from a gas boiler flue outlet to the atmosphere.
Ravenheat have, over the last 12 months designed and fully tested a system that will extract virtually all the heat from gas boiler fumes whenever the boiler is operating, with a net result of 5% extra saving on gas and a reduction in bills over and above traditional SEDBUK Band ‘A’ condensing boilers.

Take the highest SEDBUK rated boiler, attach a RAVENHEAT ENERGYCATCHER© system to the top of the boiler and there will be an automatic reduction in gas bills, due to the heat from the flue gases being transferred to a domestic hot water thermal store. This energy is then used through the boiler, or the thermal store to provide domestic hot water.

What is ENERGYCATCHER© ?

ENERGYCATCHER© is a small unique patent design heat exchanger system which divides combustion outlet fumes to extract extra heat. It captures passive energy (FREE heat)

The ENERGYCATCHER© is efficient at extracting heat from flue gases to water WHENEVER the boiler is operating. Extra heat is extracted from outlet fumes reducing them to as low as 23°C (Normally flue gases are around 60°C)

Outlet flue fume temperatures in heating are no greater than 3-5°C higher than the incoming cold return feed. The heat exchanger itself has over three quarters of a metre of surface contact area which the fumes pass over, outlet fumes are too low to support water vapour.Pluming is completely eliminated when in full operation (thermal gain).

Result - extra 5% boiler efficiency whenever the boiler is operating (DHW or CH). This efficiency is stored as thermal gain.