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The Grant Vortex Eco WH Internal Oil System Boiler range are an Internally wall hung oil boiler ideal for small to medium size properties in rural areas without a mains gas supply. The Vortex Eco WH Internal Oil System Boilers feature the patented vortex stainless steel heat exchanger and tubular baffle system. Also the system model feature a factory fitted expansion vessel, filling loop, pressure gauge, automatic air vent, pressure relief valve abd circulating pump. There are a wide range of flues available for the Vortex Eco WH Internal Oil System Boiler including the Grant EZ-low level, high level and vertical flue systems suitable for a number of installation situations.
At Boilers2go we recommend the Grant Vortex Eco 12/16 WH Internal Oil System Boiler for small to medium size properties in rural areas without a mains gas supply and where living space is limited making a floor standing modal impractical. The Vortex Eco 12/16 WH Internal Oil System Boiler is also a condensing boiler able to help reduce fuel bills and carbon emissions by reclaiming latent heat from the flue gases. Plus the Vortex Eco 12/16 WH Internal Oil System Boiler comes with a 2 year manufacturer's warranty for peace of mind.
The Glow-worm Ultracom2 SXI Condensing Gas System Boiler range is ideal for a range of property sizes with a high demand for hot water. The Ultracom2 SXI Gas System Boiler range are designed to be hassle free being spacious internally for easy access making servicing and maintenance quick and simple. They also feature a unique filling loop and one way wiring connections which makes installation easier and quick saving consumers on installation costs. Also the Ultracom2 SXI Gas System Boiler features a clear high definition plain text display for quick commissioning and user friendly simple fault code explanations enabling problems to be diagnosed quickly.
At Boilers2go we recommend the Glow-worm Ultracom2 18 SXI Condensing Gas System Boiler for small to medium size properties with a high demand for hot water. For added convenience the Ultracom2 18 SXI Gas System Boiler is LPG compatible without the need of a conversion kit and so would also benefit users living in off gas areas. The Ultracom2 18 SXI Gas System Boiler is also a condensing boiler capable of reclaiming latent heat from the flue gases before they are lost to the atmosphere and helping to reduce consumer's gas bills and carbon emissions. The Ultracom2 18 SXI Gas System Boilers condensing capabilities contributes to the boilers high energy efficiency rating of 'A' on the SEDBUK scale, the highest official energy efficiency rating in the UK. In addition to this the Ultracom2 18 SXI Gas System Boiler also comes with a 2 years manufacturer's part and labour warranty for peace of mind.
In a closed hot water circuit water cannot be compressed so any expansion in volume, created by an increase in temperature, needs to be accommodated by the expansion vessel. When the water is cold the pre-charge pressure forces the membrane sack, within the vessel, to collapse until the pump is started when the sack starts to inflate. As the temperature in the hot water circuit increases, resulting in the expansion of the water within the circuit, the expanded water enters the sack creating additional volume and lowering the pressure in the hot water circuit. As the water temperature drops the pre-charge pressure force the water from the sack back into the hot water circuit.