Outdoor Boiler White Dial Thermometer – HE Series

The Polar Vortex Is Back - 25% OFF on all items! Don’t Risk Losing Heat   Don’t wait until the cold hits hard. Protect your heat system and stay warm with our biggest savings of the season. Stay ready. Stay warm.   Sale ends December 11 — shop now before it’s gone.   The "White Dial" Furnace Thermometer reads the furnace temperature in any outdoor boiler (including all GH and HE model furnaces) and meets the specifications to give temp readings. This thermometer does not control any instruments, it is for information purposes only for the user. This thermometer ships with a well if needed, but for existing furnaces, the thermometer just slides into the existing well.