Lochinvar designs, manufactures and distributes a large range of gas-fired boilers and water heaters, and complementary equipment including thermal stores and indirect and direct storage vessels. Our traditional products can also be integrated with renewable or low carbon technologies, such as heat pumps and solar thermal.

A comprehensive product range which provide efficient, reliable heating and hot water solutions for new-build or refurbishment requirements


Floor-standing and wall-hung gas-fired condensing boilers with outputs ranging from 41 to 576 kW

Water heaters

A wide choice of high-efficiency water heaters providing installation flexibility with hourly water outputs ranging form 76 to 9,912 litres of hot water per hour


Air to water heat pumps, gas absorption heat pumps and solar thermal technologies, all of which can be integrated with our high-effiency water heaters and boilers

Low Carbon Packages

Heat pumps are growing in popularity to provide heating and hot water in commercial buildings; we can provide cost-effective, low carbon packages

Spare parts

Readily available spare parts from our Banbury facility, many of which can be supplied for next-day delivery


Our document library provides a wide range of information


Water Heater Sizing

SELECT is our established water heater sizing programme, and will help you to find the most suitable gas-fired water heater for each application



We host a range of courses for installation and maintenance contractors at our purpose-built training facility and we also welcome anyone wishing to make an informal visit to view our range of solutions

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After-sales service

One of the foundations of our success since 1976, has been our attention to Customer service. This includes our own team of service technicians, supplemented by a number of esablished service partner companies.

Our Service team provides Commissioning, Service call-outs and routine Maintenance.

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Case studies

View our case studies

18 May 2021

New Hires for Lochinvar as 2021 Starts Strongly

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14 May 2021

UK Getting Greener, But Much More to Come From Buildings

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9 March 2021

Heat Pumps Set To Play A Bigger Part

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