Lochinvar SELECT

Welcome to SELECT – our sizing programme for direct gas-fired water heaters.


SELECT can be run online from our website or the current version can be downloaded enabling use when offline.


The SELECT programme has been in use since 2000 and the current version includes all our direct gas-fired Water Heaters, providing options to choose products with integral or separate storage, balanced or conventional flue and the option of condensing or high efficiency non-condensing models. Sizing criteria has been taken from various Industry guidelines along with Lochinvar Ltd’s own Industry experience which dates back to 1976.


Please feel free to contact your Area Sales Manager or our Head Office if you wish to discuss any aspect of SELECT in detail. This information is available via the ‘Contact Us’ tab on the menu bar header.

Lochinvar Product Range



Our CIBSE accredited CPD Seminars include Solar Thermal and Direct Gas Fired Hot Water Generation. Training courses covering installation, maintenance and troubleshooting issues are now available at Lochinvar’s premises in Banbury.

About Lochinvar

Lochinvar designs, manufactures and distributes a large range of High Efficiency / Condensing Water Heaters and Boilers, which can be integrated with our Renewable Packages. Click here.