Solar Compatible Combi Boilers

Solar Panels & Condensing Boilers working together

The solar system can be used directly connected to an eco hometec Solar Compatible Combi or alternatively as part of conventional boiler and hot water cylinder system. When connected to a solar combi, solar heated, mains pressure hot water is supplied direct from the storage tank to the solar combi.

Sensors located at the boiler inlet confirm the incoming water temperature and the boilers onboard VCO (Variable Controlled Output) system modulates the burner output so as just enough gas is used to raise the water temperature to the required set point, typically 55° - 60°C for domestic hot water.

During the summer months the storage tank water temperature maybe greater than the required set point so a blending valve, fixed before the solar Combi water connection, mixes cold mains water with water from the storage tank to the required set point. When the inlet temperature is the same as the DHW temperature set point the VCO system prevents the burner from igniting.

Uses Solar Energy To Heat Hot Water - Less Fuel Is Used For The Production Of Hot Water
Uses Condensing & Solar Energy In One Compact Unit - Can halve Fuel Bills And Save Up To 6 Tons Of CO₂ Emissions
Pre-Heated Water Improves Combi Flow Rates - All The Benefits Of Combi + Fast Mains Pressure Hot Water

The eco hometec Solar Compatible Condensing Boiler (shown below)

Solar Combination Boiler

This system design delivers pre-heated, mains pressure water, to the combination boiler. Stored water temperatures can rise to in excess of 80°C. In line blending valve mixes cold mains water with stored water to required domestic hot water set point. Water then passes through combi and boiler controls determine whether to fire the boiler and to what output. Combi used simply to top up stored water temperature to set point. System benefits include:

Faster flow rates of domestic hot water
Minimal gas consumption for hot water production
Constant hot water
Reduced emissions of greenhouse gases
Uses renewable energy and minimises use of fossil fuels
Simple controls - no need for end user interaction

Typical Type 'S' Combination Boiler Hydraulic system installed with solar heating

Combination Boiler System Installed

Site visits and Project Planning

eco hometec's experienced consultants are available to discuss and help you with your project. You are welcome to visit us at our premises in Doncaster and we are more than happy to attend your office or site to discuss your project and answer your questions.

Please browse our website for more information about eco hometec and our range of eco Heating products including Solar Compatible Combination Gas & LPG Boilers then click here to submit your plans or contact us on Freephone 0800 8620278 to speak to one of our team or e-mail us on sales@eco-hometec.co.uk.