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FHT Stoves Logo Connecting FHT Stoves to heating systems

The FHT Stove can be connected in various ways, including directly into an existing heating system. The difference compared to a 'back boiler' system is that a pump is required. The circuit can direct heat to any location at any level, unlike most 'back boiler' systems which must circulate heat to radiators above the stove by natural convection for safe operation.



Direct connection to an existing central heating system

- Connected like a radiator to the nearest central heating flow and return pipes
- Connects to pressurised or open-vented heating systems
- Pump allows the FHT Stove to operate either independently of the CH boiler or in parallel with the CH boiler
- Non-return valve prevents back flow from the CH system pump when the fan is off
- FHT Stove can be integrated with existing central heating control for optimum benefit
- Discrete water connections can be made in small bore tubing
Central Heating Connection

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Independent Connection

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Independent heating circuits

- FHT Stove is the only source of heat
- Pump and expansion vessel or header tank required
- Radiators can be controlled with TRVs or on/off valves if required
- FHT Stove can cycle on and off thermostatically like a central heating boiler
- Radiators at the same level, lower than and/or higher than the stove
- Connection via conventional pipe bores (22 or 15mm)



Connection to thermal stores and other
renewable heating technologies

- Simple link to thermal stores via a pressurised or open-vented loop
- Other Renewable heat sources can be connected in the same system
- High temperature 'top up' for low temperature systems
- Good match to low-cost air-source heat pumps
- Ideal for low energy New Build and Refurbishment projects
Renewables Connection

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Grand Design Connection

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Distributing stove heat across open-plan spaces

- For the 'grand design' with large open-plan living spaces
- Either an independent circuit or as part of the central heating system
- Good match to underfloor heating systems


Simple connection to hot water (immersion) tanks

- No header tank required (can be pressurised)
- Hot water tank can be located anywhere - not restricted to being above the stove
- Water temperature can be thermostatically controlled - fail-safe operation
- Demand Side Management option for Electricity Suppliers - displaces electric immersion heating on the coldest days of the year
- Good match for reducing stove heat output at the end of the evening to heat water for the morning
Hot Water Connection


Off-grid homes, boats, DC systems

- Off-grid systems relying on DC electrical supplies (batteries)
- Fail-safe operation of the FHT Stove ensures safe operation with battery systems
- Distribute heat at the same level as the stove - boats and eco-cabins
Off-Grid Connection


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