Most popular products in Boilers

Welcome to Howarth Online

Want to see what is available in your local branch?

Please enter your postcode below.

Don’t want to give a postcode? Allow us to auto-detect your location

Have an account already? Login here

? Why do you want to know where I am?

We sell thousands of different products which means our stock levels around the country vary.

If you share your location with us we can ensure that the stock levels you see on the site are accurate.

We will never share your location with anyone.

If you proceed without sharing your location with us, we can’t show you accurate stock levels.

Share your location with us

We can’t show you accurate stock levels because you haven’t shared your delivery location with us. Please share your location with us now.

Don’t want to give a postcode? Allow us to auto-detect your location



Howarth Timber and Building Supplies’ Plumbing and Heating Department has a range of boilers to suit all budgets and requirements, including:

Heat only
Combination (often referred to as a “Combi” boiler)
System boilers

 Updating Your Old Boiler

According to the Energy Saving Trust, the average boiler accounts for “55 per cent of what you spend in a year on energy bills.” For most people, that is a high percentage and the statistic highlights just how important it is to ensure that your boiler is as efficient as possible.

To know exactly how much you could save by replacing your boiler, you need to know its rating. However, to give you an idea of how much you could save:

Semi-Detached House: Could save between £80 and £350*
Detached House: The greatest savings of between £125 and £490*
Detached Bungalow: You should expect to save between £65 and £275*
Mid Terrace House: Savings of around £65 and £250*
Mid Floor Flat: An average saving of between £30 and £130*

*Actual amounts are dependent on your current boiler, and the type that you replace it with. The highest-based savings are based on rough figures for households who replace their control-free G-rated boiler with a new A-rated Condensing Boiler that does have controls (thermostat, radiator controls etc). The lower-based savings are estimated for households who are replacing a D-rated boiler system that does have thermostats etc, with a similar A-Rated one. 

What makes new boilers more efficient?
To put it simply, new boilers are able to be more energy efficient because of updates in technology. Modern Boilers are typically what are called “Condensing” boilers, and the condensation that is created by the cooling flue gases allows more energy to be recovered, which increases the boilers efficiency.

Another reason why new boilers are more efficient is because boilers – unfortunately – don’t last forever. Over time, boilers are prone to corrosion, which make it more difficult for your radiators to work effectively. Corrosion can be slowed down using “chemical inhibitors” which work to prevent any build-up of corrosive bodies such as scale and sludge.

How to choose the right Boiler
Choosing the right boiler for your home and family needs is crucial to ensure that you do not waste money.

For example, if you are a single person living in a flat, then you probably won’t require much heat or hot water, and the chances are high that only one hot water outlet will be used at any one time. You also won’t have a great deal of space either, therefore a Combi Boiler is ideal for your needs, as it takes up less space and is just enough to heat up as much as a single person or couple should need.

If you are a large family, however, a Combi Boiler is definitely not going to be enough. This is because a Combi boiler wouldn’t be able to keep up with the demand for hot water in a home where several hot water points are likely to be used at any one given time (someone takes a shower, as someone else is washing their hands in another bathroom, for example). Therefore, we would recommend choosing a regular boiler.

If you are keen to embrace Solar Power, most Combi boilers are not capable of supporting it; therefore, if you do want to install solar panels, a regular boiler would be much more efficient.

For more guidance and assistance, contact your nearest Howarth branch.

Related Searches

Suggested Categories: Boiler Pumps, Biomass Boilers, Boilers

Free Delivery Free delivery over £150 ex VAT is available on a wide range of products that can be delivered directly to you from your local Howarth branch.
Free Click & Collect Collect your order at a time that suits you from just 1 hour of ordering.
Expert Advice Howarth has been helping build Britain for 180 years, offering you a service, expertise and knowledge that you can rely on.