Three Function Control:
- Universal Temp Limit
Replaces cold-start Hi-Limit Aquastats*
- Low Water Cut-Off
Protects boiler from damaging dry-fires
- Fuel Saving Boiler Reset
Saves fuel by reducing the boiler temperature during non-peak demand
The Fuel Smart HydroStat is standard equipment on many premier boiler lines. It can also be used as a universal replacement control to improve the performance and fuel efficiency of older cold-start gas boilers equipped with smaller, single-function Aquastats.
- Electro-Well (needed to activate Low Water Cut-Off functionality)
- Outdoor Sensor Kit
- Remote Mounting Kit
For cold start gas boilers, universal replacement high limit control with adjustable high limit. Replaces smaller, single function limit control models.
Replaces Honeywell L4006A, L4080B
*Note: not compatible with OS-100 outdoor reset kit
Accessories & Remote Mounting Options
For all HydroStat Models except 3000 Series
Wall/Jacket Mounting Kit
Kit includes: 2 mounting brackets, remote sensor, plastic grommet, rubber well cap, 4 #8×1/2″ self-tapping screws.
48-101 HydroStat Wall/Jacket Mounting Kit with 2′ sensor
48-102 HydroStat Wall/Jacket Mounting Kit with 4′ sensor
48-103 HydroStat Wall/Jacket Mounting Kit with 10′ sensor
Pipe Mounting Kit
Kit includes: mounting bracket for 1″ to 2″ pipe, remote sensor, plastic grommet, rubber well cap.
48-121 HydroStat Pipe Mounting Kit with 4′ sensor
The boiler and radiation installed in your house are designed to keep you warm on the coldest day of the year. For every other day, your heating system is essentially larger than it needs to be. With conventional boiler controls, this ?oversized? boiler burns more fuel than is needed to keep the house warm. The new Fuel Smart HydroStat control uses Thermal Targeting? technology to analyze thermostat activity and continually evaluate how much heat the house requires. When it is very cold outside, the heat demand is high and the Fuel Smart HydroStat raises the boiler?s temperature to provide needed heat to the home. When the outside temperature is milder, the heat demand is lower. During these periods, the Fuel Smart HydroStat lowers the boiler?s temperature ? saving fuel ? while the more moderate boiler temperatures provide comfortable and more even heating.
The principal of regulating boiler temperatures based on heating loads is not new. It has been used for decades with studies demonstrating average annual fuel savings of 10%. Savings in the milder Fall and Spring months can exceed 20%. Until now, this technology was very expensive and difficult to install. The new Fuel Smart HydroStat?s Thermal Targeting feature can put this fuel saving technology to work in your house at a lower price than ever before.