bryanska wrote:
On Mar 21, 3:24 pm, (David Combs) wrote:

Or do they have their own ****ty ones, made by name
brands but expressly for HD?

If HD is bad, then where?

Thanks!

David


For programmable thermostats, the difference is probably very very
small. The thermometer in most is probably a simple piece of Chinese
silicon. Add an integrated circuit, and voila. A perfectly good piece
of electronics. Lifetime: about as long as any other lump of
integrated circuitry with no moving parts, which is to say about
forever.

Maybe in the past there was a difference in the metallurgy of the
mercury-driven spring coil, but all that variation and cost has been
engineered out.
Hi,
Made in China stuffs are all made on different specs. Compare Honeywell
and say Hunter thermostats. Open it up and look inside. Feel the buttons
for human interface. I had to replace quite a few Hunter, Noma, etc.
cheaper thermostats at my relavies'and friends'. They usually last until
warrant runs out. I use Honeywell Vision Pro touch panel 'stat and
wireless one which never gave trouble since installed. Just reelace
batteries when it's time to replace them. Maybe you have not worked in
the field of QC for screening source material? If you think an IC being
sold at RS and one from industrial whole sale house is one and same,
WRONG! If it is mil-spec'd one, then that is again different category.