There are three reasons:
- There simply isn’t enough room. The condenser sits on top of a standard boiler and there just isn’t enough space. Boilers require servicing and it’s no use making a design that is nearly impossible to service. Parts must be accessible to clean and replace annually at a reasonable cost. We use standard parts that are readily available, and are serviceable from the front of the cooker without special tools.
- All newly built housing is heavily insulated and a 21kW boiler would be sufficient for any 6-7 bedroom house built since 2008. Older houses need more energy but we all need to fit condensing boilers to save costs, so we offer a separate boiler for little more.
- We can sell a separate boiler and a 3-oven oil fired cooker cheaper than cramming the boiler inside the cooker and you get the third oven and it can be a balanced/low level discharge flue. Unless you are incredibly short of space it’s cheaper, easier and simpler to have a separate boiler. Be careful – there is a lot of nonsense talked by sales people who do not have knowledge.