On Apr 11, 6:04*pm, Joe wrote:
On Apr 11, 4:37 pm, "RBM" wrote:





"Joe" wrote in message

...

I've been reading about devices made by Tekmar and Beckett will either
of them do what I want? My boiler heats my hot water and these days I
hear it cycling all night just to keep the water hot enough in case I
decide I want to take a bath at 2am. Is there any way I can tell my
boiler to take 6 hours off at night while I'm sleeping?

Yes, probably. Assuming you have a domestic coil in your boiler, and not an
indirect hot water maker, you could rig a time clock to interrupt the
aquastat circuit , which is maintaining tank temperature. I doubt there
would be a huge savings though. If it comes on a few times during the night
and only runs for a minute or two, to keep the set temperature, it would
probably come on at the end of the timer cycle, in the morning, but have to
run for a longer period of time to make up for the greater reduced
temperature in the tank.

I guess what I'm worried about is that last summer I calculated that I
used about a gallon a day of oil for hot water. That's going to
translate into over $100 a month with oil prices where they are. I'm
wondering if getting an independent hot water heater will be more cost
effective.- Hide quoted text -

- Show quoted text -

A gallon a day, your figures or mine are way off Ng might cost you
10$ a month with a tankless at most.