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Doctor Drivel Doctor Drivel is offline
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Default Warm Air alternatives


"Cicero" wrote in message
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Basically you're saying that you know
better than about 99% of the British
heating / ventilating industry.


Any "heating engineer" will agree with me. Plumbers do not. The proof in
the eating. The comfort conditions in forced air, heat recovery and vent
are far superior. They are also cheaper to run.

Warm air heating has virtually no
penetration of the domestic market in
this country


You are like a stuck record

for the obvious reason
that people have decided that it
doesn't compare very favourably
in overall terms with the tried and tested
wet system which is basically simple
to install and maintain, cost
effective and well-suited to our climate.


That is total balls. "doesn't compare very favourably" - BS words. Forced
air and vent is much superior in comfort conditions - you have been told
that, but it doesn't sink in. Forced air is simple maintain, as in most
cases it is incorporated all in one box...and no corroding rads every 8 to
10 years.

Remember that the OP asked for
alternatives to warm air heating and
pointed out that the J&S representative
wouldn't tell her the price of the
boiler he wanted to install.


Then go to another dealer an dget another price. Or go Unico who can put a
air hander in there heated via a combi. Best she just gets the latest J&S
unit - excellent unit indeed.

A few pictures of your own warm
air installation


Yes pictures convince the hard of thinking. As I said to you. Get to
understand how it works and what it offers. Then the differing systems
available. Then you will be much better informed and not make a fool of
yourself.

Architects deplore discharge and overflow pipes penetrating the side of
building. These pipes also extract heat from the building too, screwing up
heat losses. They also stain the side of buildings. Since 2001 toilets can
be overflowed into bowls, so no problem there with pipes penetrating the
outside. Unvented cylinders can be discharged into the drain using a tundish
and HepVo trap now. Again no outside wall penetration. But that still
leaves the boilers which have flues and discharge pipes - although the Atmos
can be discharged into a tundish and HepVo trap.

To avoid all this crap on the outside of walls, with modern insulation
levels being so high and flats insulating themselves in a block they install
electric heating. Three to fours times as expensive to run, but as it will
be rarely on it becomes cost effective to run.

Many are looking at common boiler rooms and local hydraulic interface units
(heat distribution boxes so to speak, as used in district heating schemes).
In each flat is takes heat from a pipe loop from the common boiler room.
These consist of a few plate heat exchangers and controls. One doing DHW for
the flat giving instant DHW from the mains and the other feeding a small
heat recovery and vent unit with a copper coil inside. Ducting up to the
roof provides air intake and exhaust. No rads on walls and cheap to run
heating and ventilation too. The heat is charged via an energy meter. So no
gas in the flats, only in the boiler room.

Forced air/heating and vent/heat recovery is being installed and is
increasing in uptake too.