In your case, Cor, I think insulation is the key. If heat loss is
minimal, the gradients inside will be minimal. Insulation would also
make a big difference in an EV. But not so easy, perhaps.
Peri
------ Original Message ------
From: "Cor van de Water via EV" <ev@lists.evdl.org>
To: "Electric Vehicle Discussion List" <ev@lists.evdl.org>
Cc: "Cor van de Water" <cwa...@proxim.com>
Sent: 29-Nov-17 10:30:23 PM
Subject: Re: [EVDL] Heat pump vs resistive Heater (never buy another AC
unit)
Jim,You perfectly describing the situation where the design of the
heating system is inadequate for the building, which typically happens
when it was not designed but someone just installed something and hoped
for the best.My mom had her house converted to floor heating, which
included insulation under the floor. I do not know a house more
comfortable than hers, while she has significantly reduced her heating
costs. The heat capacity and insulation is such that the house loses
only a few degrees overnight when her heater is off. Actually the
thermostat is just reduced a few degs but the heater does not come on
all night even with freezing temps outside. Our house loses several
tens of deg in a few hours...
Sent from my T-Mobile 4G LTE Device
-------- Original message --------From: jim--- via EV
<ev@lists.evdl.org> Date: 11/30/17 7:19 AM (GMT+02:00) To: Electric
Vehicle Discussion List <ev@lists.evdl.org> Cc: j...@k6ccc.org Subject:
Re: [EVDL] Heat pump vs resistive Heater (never buy another AC unit)
Cor van de Water said (in part):
I have always been amazed by how most of USA has forced air blowing
around through their house, which I find
rather uncomfortable. I am from Europe, where you have radiators under
windows that are warmed with
warm water and air in the room naturally circulates at a very low
speed
(natural convection) throughout the room.
You're entitled to your opinion, but I HATED radiators which were the
norm in schools when I was a kid. You always ended up with the kids on
one side of the room frying while the kids on the other side of the
room wearing heavy jackets to keep warm. Same thing with the floor
furnace that was in my grandparent's house. In cold weather we'd all
huddle within 10 feet of the furnace while the rest of the house was
frigid.
73
-----
Jim Walls - K6CCC
j...@k6ccc.org
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