On 01/01/2016 21:58, Andrew Gabriel wrote:
In article ,
Vir Campestris writes:
On 29/12/2015 23:00, Andrew Gabriel wrote:
In ,
(D.M. Procida) writes:
I don't want to buy or run a dehumidifier unless absolutely necessary,
They don't work at outdoor winter temperatures anyway.
ICBW but I thought dessicant wheel types would.
You might be right.
However, these use more power (for the same level of dehumidifying),
and I suspect a heater of the same power rating would be just as
effective.
The heater I use in the shed is a 1kW oil-filled radiator, but with
a series diode to limit it to 500W. When the system is running, the
heating duty-cycle is so low that when you feel the radiator, you
would not even think it has been on. The power output required to
drop the RH from 100% to 80% at low temperatures simply by raising
the temperature is remarkably low.
I had not expected this initially and using a heater was going to be
a stop-gap before trying a dehumidifier, but when I found how little
heat was required, I dismissed using a dehumidifer in the shed.
A desiccant dehumidifier would use about 400w for a smallish one while
actually running.
This would heat the shed at least as much as your 500w heater as it
would recover the latent heat from the water it condensed while the air
is damp.