Best temp setting for an aquastat

Old 04-30-06, 08:23 PM
Thread Starter
Join Date: Sep 2004
Location: New York
Posts: 507
Upvotes: 0
Received 0 Upvotes on 0 Posts
Best temp setting for an aquastat

I just installed a new Honeywell L8148A aquastat relay. In the winter I have it set at 180* shut off when I'm heating the house. This boiler also runs my boiler mate for hot water. In the summer when I'm not using the boiler for heat, all this boiler does is turn on to heat my water. Should I still leave my shut off limit at 180*? Does this seem to high just to heat my water? Can I set the temp down lower so it doesn't run as long to heat up. I read by doing this, lowering the temp just to heat a boiler mate, can save you money in the summer months. What would be a good temp to set this aquastat to, just to heat hot water?
Old 05-01-06, 05:20 PM
Grady's Avatar
Forum Topic Moderator
Join Date: Jan 2005
Location: Delaware, The First State
Posts: 12,682
Received 41 Upvotes on 39 Posts
Boiler temp

You can try 160 or even 150. If the indirect does not get hot enough, fast enough, you may have to turn it back up. It is often a trial & error thing. You may find, especially in moderate weather, these temperatures will be ok to heat your house.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: