Combi vs System vs Heat Only Boilers: Which Do You Need?

A combi suits most flats and homes with one bathroom. A system boiler suits homes with two or more bathrooms. A heat only boiler suits older homes with a cylinder and loft tanks, or homes with low mains water pressure.
ATAG iC vs iC Economiser: Which ATAG Combi Is Right for You?

Both are high-quality ATAG combis with a stainless steel heat exchanger. Choose the iC for a dependable, compact combi, or the iC Economiser if you want to use less gas for hot water. If you have a hot water cylinder, the iS is the ATAG system boiler to look at.
Baxi 400 vs 600 vs 800: Which Should You Choose?

Baxi’s numbering makes it simple: the higher the number, the higher the spec. Choose the 400 for a smaller home on a budget, the 600 for most homes, and the 800 for Baxi’s best components and longest guarantee.
Viessmann Vitodens 050-W vs 100-W vs 200-W: Which Should You Choose?

Choose the 050-W for Viessmann quality at a lower price, the 100-W for most homes (it also has the longest guarantee of the three), and the 200-W for larger homes that need a powerful, flexible boiler.
Ideal Instinct vs Logic Max vs Vogue Max: Which Should You Choose?

Choose the Instinct or i-mini for a flat or smaller home, the Logic Max for most family homes, and the Vogue Max if you want Ideal’s flagship with a stainless steel heat exchanger and the longest guarantee.
Vaillant ecoFIT pure vs ecoTEC pro vs ecoTEC plus: Which Should You Choose?

Choose the ecoFIT pure for a great-value Vaillant in any type of system, the ecoTEC pro for a no-fuss combi with faster hot water, and the ecoTEC plus if you want the widest choice of types and sizes. All three come with a 10 year guarantee when we fit them.
Worcester Bosch Greenstar 2000 vs 4000 vs 8000: Which Should You Choose?

Choose the Greenstar 2000 for a flat or a home with one bathroom on a tighter budget, the 4000 for most family homes, and the 8000 for bigger homes with more than one bathroom or if you want Worcester’s top range and longest guarantee.