Good Afternoon Melyssa, I would recommend you get a Gas Safe installer to your property to do a survey. Boiler sizes are based on your needs for hot water consumption as well as the fabric of your property such as property type, insulation, cavity wall, double glazing etc for the heating. An installer will be able to discuss that with you while understanding your home and requirements, as it might well be for your 3 bathrooms the best solution for hot water might be an unvented pressurised cylinder such as the Heatrae Megaflo. Kind Regards Paul at Baxi
Answered by: Purdie at Baxi
Date published: 2021-10-18