Scott Findlay Plumbing & Heating Engineers

Types Of Boilers

Typical savings & the types of central heating systems

How much could you save?

This will depend on how old and inefficient your existing boiler is.

Typical annual saving based on your present boiler rating:
G (< 70%) £300 plus
F (70-74%) £200 plus
E (74-78%) £150 plus
D (78-82%) £105 plus

These are estimated figures based on installing a new A-rated condensing boiler in a semi-detached home with three bedrooms.

Modern boilers are more efficient for several reasons, but their main advantage is that they are all condensing boilers. All well-maintained boilers burn their fuel very efficiently, but they inevitably lose some heat in the hot gases that escape up the flue. A condensing boiler has a bigger heat exchanger, so it recovers more heat, sends cooler gases up the flue and is more efficient.

Installing a new boiler

If it is time to change your boiler, then the first thing is to decide what type of boiler you need.

Which type of boiler do I need?
What is a condensing boiler?
What is a combi boiler?
What is a regular boiler?
What is a system boiler?

The right boiler

Most old gas boilers are regular boilers - they have a separate hot water cylinder to store hot water, rather than providing it directly from the boiler. When you replace your boiler you have a choice of buying a new regular boiler, and keeping your hot water cylinder, or buying a combi boiler that doesn't need a cylinder.

A regular boiler is actually more efficient than a combi at producing hot water in the first place, but then some heat is lost from the hot water cylinder, so a combi may be more efficient overall. The best option for you will depend on a number of factors:


How much hot water do you use?

A large family using lots of hot water could be better off with a regular boiler - a smaller household using less may be better off with a combi..


Are you short of space?

A combi boiler doesn't need a hot water cylinder, and so needs less space.

Firstly, consider which type of boiler you have or may need from the following three types:-


  • Conventional
  • Combination (Combi)
  • System

Whether you're on a low budget or require a high end installation, then we have some of the best offers available anywhere.

Boiler Install
Boiler Replacement
Worcester Greenstar
Central Heating
Central Heating Install