Holiday Finale Sale 🎉

Last Chance to Save 25%!

Wrap up the season with unbeatable savings during our Holiday Finale Sale. For a limited time, enjoy 25% OFF on our products as we close out our holiday promotions.

Shop now and make the most of these holiday savings before time runs out!

Sale ends on Thursday, December 25th!

The VTC Thermostat 140F is a required component of the VTC Thermostatic Load Valve ("TLV"). This is the thermostat only, not the valve. The TLV is a required installed component for every high efficiency outdoor boiler installation. The purpose of the TLV is to ensure that the boiler water jacket temp does not drop below 140 degrees.

Contact OutdoorBoiler.com for installation instruction guide.