Supplied By www.heating spares.co Tel. 0161 620 6677
8
Section 4 OPERATING
4.1
The boiler’s flue gases, instead of going
straight outside at around 60 °C, the flue gases
are fed into the Energycatcher, where they flow
over a heat exchanger. This otherwise wasted
heat is transferred to the water in the heat
exchanger, which moves under convection into
Energycatcher and/or a storage tank. The tank
can be of any size to suit the need for example,
after the central heating has run for a short
period the store will be heated, giving a good
supply of preheated hot water. The exhaust
gases, now considerably cooler, then vent to
the atmosphere.
If the householder runs the central heating
system in the early morning, so the house is
warmed for breakfast time. All the time the
boiler is running, the waste heat in the flue
is being transferred to the water in the heat
exchanger, which then passes to the storage
tank. This water can reach between 40 and 50
°C within 20 mins - to a max of 60 °C.
When the householder runs the hot tap, either
for a wash, shower or bath etc....
Section 3 TECHNICAL DATA
The preheated hot water runs directly from
Energycatcher and/or storage tank through
the boiler (combi type) to the tap, this
preheated water is supplied totally free of
charge, it is cycled through the boiler where
the higher than normal inlet temperature is
sensed, and only sufficient heat applied,
bringing the water up to the normal
preselected outlet temperature set on the
boiler. Far less gas is used to supply this
“piping hot” water.
Either way, the householder saves money;
Ravenheat estimates that over the year, a
typical average gas bill will be cut by up to
7% over and above a 91% efficient Sedbuk
band A condensing boiler (over 50% saving
by replacing non-condensing appliances
with a Ravenheat condensing boiler and
Energycatcher).
In addition, hot water flows from the tap
quicker than normal (less cold water is
used).
D.H.W. pressure max 6,0 (bar)
Dry weigh
12,3 (Kg)
Water content 1,6 (Litre)
Water inlet pipe 3/4 " BSP
Water outlet pipe 3/4" BSP
Suitable for use with Ravenheat boiler model
Ravenheat 120/150 Low Nox boile
Other boiler manufacture Any band A SEDBUK gas boiler , of whatever type or
make, can be fitted with a Ravenheat Energycatcher
subject to all round consent.
Flue resistance 1,5 m length for 60/100 flue
Deduct from overall boiler flue length 1,0 m length for 80/125 flue
Boiler flue length See boiler manual and overall maximum flue length
then deduct value in flue resistance as above
