On Jan 2, 9:44 pm, Charlie <
charlieopens...@gmail.com> wrote:
> Is anybody able to recommend a decent humidistat dehumidifier, that is
> nice and quiet?
Meaco DD8L Junior can be had for about £120 delivered.
Junior just means no ioniser & no silver filter (which looks too lame
to do anything).
As a guide 40mm Celotex in a proverbial box-room means 120W tube
heater (*) will keep it at about 15oC with the outside at -1oC and the
wind blowing a stink, single glazed 1x1m window & empty cavity with
slight roof leak, mortar snot laden rotting wall ties and two outside
walls.
So you need very little heat input if you insulate. A dessicant
dehumidifer kicks out a lot of heat because of the internal heater to
dry out the silica gel wheel (120oC+). On normal operation they are
about 350W, but laundry mode pushes that to around 800W which is quite
a lot of heat - and drying.
Just ensure you have a thermostat that shuts OFF above a certain
temperature - you just use a plug in unit with it set to 30oC. The
DD8L & DD8L Junior restart in the last mode when power cycled.
BUT you have a problem - the tanks on dessicant dehumidifiers are
pitifully small - 3-4L as I recall, a Mitsubish EVX is around 8L which
is substantial. So you need to plumb the thing in or have a separate
larger capacity tank (10L drum underneath supplied by the hose).
I suspect 12-25mm Celotex or cheaper 25mm Expanded Polystyrene will be
quite adequate. I think you will run into the problem of it getting
too hot too quickly. So the dessicant type may actually be
problematic. You need good airflow around the clothing.
A final note is the fans on these things DO seize at the bearings, so
in that respect I suggest at least a heat alarm (58oC trip I recall)
in there preferably linked to others in the house. Just because it is
not a tumble dryer does not mean it can not catch fire. Likewise
dessicant dehumidifiers contain various dire warnings about letting
moisture drip into them, I suspect it is the high wattage heater
element, water & mains floating around inside. Lots of glass fibre
insulated wire.