Mitsubishi Heavy Industries vs Mitsubishi Electric

Mitsubishi Heavy Industries (MHI) and Mitsubishi Electric are two separate companies. Both use the Mitsubishi name and both make air conditioning, but they are different manufacturers with their own ranges, warranties and terms. On our price list, MHI systems carry a 10-year parts-only warranty, while most Mitsubishi Electric systems carry a 5-year parts-only warranty. We often recommend MHI because of that longer parts cover. Our recommended Gold package is the Mitsubishi Heavy Industries Premium ZS White with a 10-year parts warranty.

Mitsubishi Heavy Industries and Mitsubishi Electric both trace back to the wider Mitsubishi group of Japanese businesses, but they have been separate, independently run companies for many years. Each sells its own range of air conditioning under its own brand, and a warranty from one company has nothing to do with the other. It is easy to assume they are the same business because of the shared name, so we wanted to set that out clearly before explaining what each warranty actually covers.

Every MHI air conditioning system on our price list is sold with a 10-year warranty, and the warranty type is manufacturer's parts only. This means MHI will supply a replacement part if an original part fails within the warranty period, but the warranty does not cover labour, so it does not pay for an engineer's time to fit that replacement part.

MHI's own published terms set out general conditions that apply to extended warranty cover on its systems, including that the installation and commissioning is carried out by a suitably qualified, F-Gas registered engineer, and that the system is kept under a service arrangement for the warranty period (MHI UK, Warranty (opens in a new tab)). We are F-Gas REFCOM registered (REF1022701), and we recommend annual servicing on every system we install for this reason, alongside the general efficiency and reliability benefits of regular servicing.

Most Mitsubishi Electric systems on our price list carry a 5-year warranty, also manufacturer's parts only, so the same principle applies: parts are covered, labour is not. A small number of Mitsubishi Electric models on our list carry a 3-year warranty instead, so always check the exact model and warranty length on your quote.

The main reason we point customers towards MHI is the length of parts cover: 10 years against the 5 years most Mitsubishi Electric models carry. Both are reputable manufacturers, and the right choice for your home or business still depends on your budget, the room and the finish you want. We will talk through the options for your system when we quote.

Want to know which warranty applies to a specific system on our price list? Call 01268 264002, message us on WhatsApp, or get a free quote and we will reply the same day.