I'm thinking of moving house soon and one of the prospective houses I'm
interested in has warm air heating (fairly new house).
Are there any known probs with these systems, are they reliable, are parts
easy to obtain. etc etc
Any thoughts or suggestions greatly appreciated
PS Also, do these systems provide domestic hot water as well?
A fairly new house with warm air heating.... Thought that was a 70's thing,
well from my experience they produce a very dry dusty heat, you can be
boiling hot near the outlets but freezing cold at the other side of the
room, don't know of any probs specifically with them tho.
The biggest problem is that prospective buyers will have doubts about it
when you come to sell, just like you do.
We replaced ours with conventional rads a while ago because we were
extending and it wasn't extendable.
You definitely want Mod AirFlow (assuming Johnson&Starley) or an equivalent
variable fan-speed system. As it's a modern house this is probably standard.
Ours had a separate gravity-fed "Janus" heater and primatic DHW cylinder,
also very 70's.
Plusses are that it's very reliable; there's nothing to rust or leak. Also
the house heats up very quickly and you don't lose wallspace to radiators.
J&S spares should be no problem - don't know about other makes.
Minuses -yes it's dry,dusty and a bit noisy. Also you'll probably find large
gaps at the top and bottom of all doors, and you have to clean the dust
yes the older models could pump c/o around the house....less and les
gas engineers are requalifying to work on warm air as there is no mone
in it...the goverment is pushing to stop the sales of less efficiant c/
systems and this is putting the final nail in the coffin for war
air....however there are folks that like warm air...its possible t
intall a wet ch boiler that sources heat to a warm air unit via
special heat exchanger...expensive and Ive never saw one installed i
the uk .
On Wed, 9 Nov 2005 01:40:25 -0000, Rob Morley wrote:
That is true: Where Aircon does go in these days its more about
recirculationg and cooling air with refrigerating cassettes rather than
Personally a fully modern house could and maybe should have very tightly
controlled ventialtion and heating: Like Drivel always goes on about...but
the cost of doing it with no standard off the shelf bits tends to exceed
the cost of simply shoving in a bit of air cooling in summer...
At some level its all a compromise. My hot air blowers cold indeed have
cold water going through them - sloightly refrigerated water - in
summer...but he danger would then be condensation...
Only if the heat exchangers was holed. And as the modern exchangers are
stainless steel highly unlikely.
A service call is a service call. The gas controls are the same as boiler
Total bollocks!!! There are some highly efficient warm air systems. J&S
have a condensing box that fits in a conventional flue adding efficiency.
I have seen lots. Whole housing estates and tower blocks had Copperads
fitted. There are copper coil air handling units around, heated by boilers
which heat the cylinders too.
You really should find out something about forced air before you prattle
Only if you manage to burn a hole in a substantial heat exchanger. Mine was
as good as new when removed after 15 years service (was no longer large
enough due to extensions)
Bodge the builder (with the helicopter) loked them (for the cheapness)
A whole estate near here was fitted with those by the builder. Upstairs rooms
were fitted with conventional radiators. The big advantage of these over the
dry system was that the fans could be modulated to give a constant output,
with lower noise levels.
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