Automatic heating valve shutoff timers

adambuild

I was considering the same thing for my indirect just haven't done it yet. Cheapo Depot sells a digital, 7 day timer that's battery powered for $29.97. I'm just going to mount it in a 1900 box and have it interrupt at the desired times.

Good luck, Adam

New Guest

Where can I find Zone valve timers

To automatically shut off a zone valve during a certain period of the day? The application is for an indirect hot water tank that would be shut off during the night.

Empire_2

Paragon Timers

I know they have a large selection to choose from. I dont know their web sight though. You could also put in a regular lamp timer, power a 120 VAC relay and run your zone valve off the normally closed contacts. When the desired time slots hits, it will energise the relay and open the contacts shutting down the zone valve.

Andrew Hagen (ALH)

Why

are you turning off the tank at night?

If it's to save fuel, you really wont save much because the boiler just has to reheat that water in the morning. You'll only just slightly decrease the temperature differential between the tank and the mechanical room as the tank cools.

If your tanks is losing heat to standby losses very quickly, it might be a better investment to get a better insulated tank.

-Andrew

New Guest_2

Where can I find Zone valve timers

ALH-

I'm sorry I don't buy your argument. At night the room thermostats are turned down and calling less frequently for heat but the indirect tank is calling for heat at the same rate to keep the water within a narrow temperature range, even though no one is using hot water. That's a waste of energy. In the morning the boiler's going to be firing anyway for space heating. Plus, I've actually timed the boiler burner firing in the morning and found that it takes no longer for it to recover the 10 to 15 degrees drop in water temperature over night--and heat all the rooms calling for heat--than it does when the boiler has been heating the indirect all night.

Andrew Hagen (ALH)

The timer

may work as a band-aid for an inefficient tank. You're still losing more heat than you should be during the day.

-Andrew