Don't forget to take the outdoor temperature into account when setting up your boiler for optimal efficiency. When the temperature is higher, less energy is required from your boiler to heat your water. An outdoor reset control will communicate with your boiler so that it knows when this is the case and the boiler will run for shorter period of time. This saves energy and saves you money! The Tekmar 260 is a popular model that can be installed to work with both your hydronic heating and domestic hot water systems.
The Tekmar 260 and other boiler controls can be found at www.supplyhouse.com.