Nil wrote:
On 15 Jan 2015, trader_4 wrote in
alt.home.repair:

I have two different models of the Honeywell VisonPro series which
have the same kind of adaptive response for recovery from setback.

Then maybe you can answer another question I've been wondering about:
If I reprogram the times and temps, will I also have to go through this
painful training period all over again? What about if I lose power?

I've never seen them come on anywhere near that early. They do
err on the side of getting there a bit early, but overall, it
works very well and if it's early, it's by more like by 20 mins.

That's a big difference - 3+ hours vs. 20 minutes.

Mine were never anywhere near that far off, right out of the box.
They do learn and
adjust though based on experience. I would give it a week and see
what happens.

I installed it 10 days ago, but I only programmed it to my schedule not
quite a week ago. I guess I have to get up very early to know for sure
how much it's adjusted itself, if at all. Maybe it's getting better, I
don't really know, I just know it's not there yet.

Are you sure it's installed correctly? IDK what has to be set on
yours, but mine you had to set whether it was a heat pump system,
furnace, etc. If it thought it was a heat pump for example, it
might fire it up sooner, IDK. I'd review all the install
settings.

I did check out all the fine-tune settings a couple of days after I
installed it. All the out-of-the-box settings were appropriate except
that it was originally set up for a low-efficiency gas furnace. I
changed it to high-efficiency. Otherwise, I think the other settings
were good.

I guess I'll give it a couple more days and monitor it more closely. I
just hate to think of all that expensive heat going up the proverbial
chimney.

Hi,
During that one week period was the outside weather steady?
My house is R2000 spec.'d pretty air tight, outside weather
does not impact much to maintain indoor comfort. Mine is set at 17.5
and 20.5 in Celcius I usually get up at 7 AM, furnace comes at around
6 AM every day. Give or take few minutes.