The Calor LPG 4 cylinder upgrade kit is what you need to take a two-cylinder changeover system up to four cylinders. With twice the bottles connected, you’ve got more gas in reserve and you change over less often, which suits properties and sites that use a steady amount of LPG. It’s designed to pair with the Calor LPG 2 cylinder automatic changeover kit with OPSO, extending that system rather than replacing it.This is the standard, non-armoured kit. It does exactly the same job as the armoured version and is the sensible, more economical choice where the cylinders are kept indoors or somewhere sheltered. If your bottles sit outdoors and could be chewed by vermin or knocked about, the armoured upgrade kit is worth the extra for the protection.Because it connects into an existing changeover system on the high pressure side, fitting should be done by a competent person following Calor’s own guidance. If you’re not certain your current setup is the matching two-cylinder changeover, check before you order.We deliver across our defined postcode area around Reading, so check your postcode is covered before ordering, or call the yard on 0118 9242888 and we’ll help you confirm the right kit.FAQsWhat does the 4 cylinder upgrade kit do?It extends a Calor two-cylinder automatic changeover system to four cylinders, so you have more gas in reserve and change over less often. It pairs with the Calor LPG 2 cylinder changeover kit with OPSO, as an addition to that system rather than a complete system on its own.What’s the difference from the armoured kit?The job is the same. This standard kit suits cylinders kept indoors or sheltered, while the armoured version adds a protective layer against wear and vermin for bottles sited outdoors. Choose based on where your cylinders sit.Will it work with my system?It’s designed to go with the Calor LPG 2 cylinder automatic changeover kit with OPSO. If your setup matches that, this kit extends it to four cylinders. If you’re unsure, call the yard on 0118 9242888 and we’ll help you check before ordering.





