Combi boiler
Provides heating and hot water from one unit without a separate hot-water cylinder. Often considered where space is limited and hot-water demand is moderate.
- No separate cylinder
- Compact setup
- Suitability depends on flow demand
Answer a few practical questions about your property, hot-water demand and current heating setup. We’ll help you narrow down the boiler options worth discussing with a heating professional.
No government scheme or funding application. This is an independent commercial enquiry service.
A better match starts with the property, not the product label.
The right choice depends on your existing system, space, number of bathrooms and how your household uses hot water.
Provides heating and hot water from one unit without a separate hot-water cylinder. Often considered where space is limited and hot-water demand is moderate.
Works with a hot-water cylinder and can be useful for homes that need stored hot water or have multiple bathrooms.
Sometimes called conventional or heat-only. It may make sense where an existing traditional system already uses a cylinder and cold-water storage.
A headline kW figure alone does not tell you whether a boiler is a good fit.
The form is designed to collect the details that actually influence a boiler recommendation.
Property type, bedrooms, bathrooms and postcode help establish the basic heating and hot-water context.
Choose the existing boiler type, fuel, approximate age and what matters most to you.
Leave your contact details if you want to discuss boiler, insulation or both with an independent service provider.
If a property loses heat quickly through the loft or roof, the heating system has to keep replacing that lost heat. Reviewing insulation alongside a boiler replacement can reduce heat loss and make the overall heating setup work more efficiently.
It can be useful to consider the fabric of the property at the same time as the heating appliance. That does not mean every home needs insulation work — it simply gives you a fuller picture before spending on a replacement system.
Check both optionsChoose boiler advice, insulation advice, or both on the next page.
Boiler sizing depends on the property, heating load, hot-water demand and system design. The home check gathers these basics, but a final specification should be confirmed by a competent heating professional.
No. Purchase and installation cost can vary with the existing system, pipework, controls, cylinder requirements, flue position and the amount of work needed.
Not necessarily. Existing emitters and controls should be reviewed as part of the system assessment, especially if the property has uneven heating or old controls.
Insulation can reduce heat loss from the property. That can lower heating demand and may be worth considering when you are already reviewing a replacement heating system.
No. Saideh is an independent commercial information and enquiry service and is not a government organisation or government agency.