Would a 70 pint DH remove more water, more quickly (than one rated at
45), or does it merely have a larger bucket?
I am currently running a 45 pint DH in the basement, connected to a
permanent drain. When it was filling its bucket, it would fill up
every 24 hrs. Its humidistat readout indicates that it now keeps the
basement at 60% rel/humidity (RH). The target setting I gave it is
50%, since 60% feels just about ok, but dryer would be better.
The RH sometimes drops to 55%, but not for very long (for about 20
minutes). Sometimes it swings up to 70%, for a very short time (5 to
10 minutes), but most of the time the DH keeps the RH between 60% and
However, the DH never shuts down. The best it can do is to cycle the
compressor off (this is when the RH usually creeps back up to 70%).
The basement does not have any water seeping into it, but only as of
I had discovered a downspout dumping water 2 feet away from the house
(onto a driveway) where it was sloped towards the house foundation AND
where the ground had sunk - towards the foundation - AND where a 1"
crack had opened up. IOW, one downspout was directing its entire
output directly into the foundation. This condition existed for years
(I recently bought the house) and created extensive basement stucco
spalling exactly in the area of this problem. No more! The crack is
sealed with hydraulic cement and the slope is fixed (away from the
foundation) with some regular cement and sealed with asphalt sealer
and the downspout now dumps water further away.
The basement does not feel damp, at 60% RH, as long as the DH is
running all the time, but I'd like to get the basement closer to 50%
RH. Thanks for any input!