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THE GAS MAN / New Boiler Installations

Boilers fitted in Newcastle. Built around your home.

Replacing a boiler starts with understanding your property, hot water demand and existing heating system. Discuss the options and request a quotation covering the proposed appliance and installation work.

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A BOILER THAT FITS YOUR NEWCASTLE HOME

Your home. Your hot water. The right boiler.

Start with how you live, then choose the equipment. These illustrated homes show three possible arrangements for Joe to discuss with you.

BOILER

Example: 6 radiators · 1 bathroom

Compact home

A combi boiler could suit a home with modest hot-water demand. It supplies hot water on demand without a separate cylinder. A kitchen or utility cupboard may be suitable, subject to clearances and a survey.

BOILERHW

Example: 10 radiators · 2 bathrooms

Busy family home

A system boiler with a hot-water cylinder is worth considering when showers or taps run together. Allow room for the cylinder, often in an airing cupboard, as well as the boiler.

BOILERHW

Example: 14 radiators · loft tanks

Home with an existing cylinder

A heat-only boiler may suit an existing traditional system with a cylinder and loft tanks. Joe can assess whether retaining this arrangement or changing the system makes more sense.

Radiator counts are example households, not sizing rules. The drawings are schematic. Joe needs to assess room-by-room heat loss, radiator sizes, insulation, mains water flow and simultaneous hot-water use before recommending a boiler and output.

01

Count the demand

Tell Joe your radiator and bathroom count, how many showers run together, and any plans for an extension.

02

Find the space

Show the existing boiler, cylinder and preferred location. Flue position, condensate drainage and service access all need checking.

03

Match the output

Heating demand and hot-water demand are different. A larger number on a combi boiler does not automatically mean a warmer or more economical home.

Boiler types explained by the Energy Saving Trust. Explore Baxi’s boiler finder.

NON-CONDENSING → CONDENSING

More warmth from the gas you use.

MORE HEAT LOST

Non-condensing boiler

More heat escapes through the flue. It does not recover the latent heat in exhaust water vapour, so more fuel can be needed to deliver the same useful heat to your home.

HEAT RECOVERED

Modern condensing boiler

Recovers extra heat as water vapour in the exhaust condenses. Suitable return-water temperatures help it condense effectively; good controls and system setup help make the most of it.

Compare the technology, not just the age. A 10- or 15-year-old gas boiler may already be condensing. Joe can identify your existing model before estimating the benefit of replacing it with a modern Baxi.

SAME HEAT DELIVERED

How efficiency changes gas use

Illustration: gas needed to deliver 10,000 kWh of useful heat. Less gas is needed as efficiency improves.

Non-condensing example · 12,500 kWh

Condensing example at assumed 92% · 10,870 kWh

About 13% less gas for the same useful heat

Illustrative calculation only: gas input = useful heat ÷ efficiency. The 65%, 75%, 80% and 92% figures are assumptions, not age-based ratings or a certified Baxi model rating. Actual use depends on the appliance, installation, temperatures, controls and household demand. This is not a forecast of your total bill or a promise of savings.

A REAL PRODUCT EXAMPLE

Baxi 800 Combi 2: heating and hot water are different jobs

The 824, 830 and 836 provide maximum hot-water outputs of 24, 30 and 36 kW. Their maximum condensing central-heating outputs are 21.8, 27.1 and 27.1 kW respectively.

That means the 36 kW version increases hot-water capability compared with the 30 kW version, rather than increasing its maximum heating output. Joe will check your water supply and heating requirements before recommending a model.

24 / 30 / 36 kW hot water395 × 700 × 285 mm · width × height × depth

Allow extra space for installation and servicing. Cupboard suitability needs checking.

Sources: Baxi 800 Combi 2 specifications and Energy Saving Trust boiler guidance. Checked 17 October 2026.

Plan your Newcastle boiler installation ↗

Explore Baxi models · Compare repair options · Plan ongoing servicing

NEWCASTLE BOILER INSTALLATION FAQs

Planning a new boiler? Your questions, answered.

Which type of boiler is right for my Newcastle home?

The starting points are your hot-water demand, available space and existing heating system. A combi supplies hot water without a separate cylinder; a system or heat-only arrangement uses a cylinder. Joe can assess your home before recommending a type. See the illustrated boiler guide above.

How do you work out the boiler size I need?

Radiator count is useful background, but it does not determine the output on its own. Joe needs to consider heat loss, radiator sizes, insulation and your hot-water requirements. For a combi, the hot-water output and central-heating output can differ, as the Baxi example above shows.

Will a new boiler reduce my gas consumption?

It can, particularly when replacing a less-efficient non-condensing boiler. The result depends on the existing appliance and how the new system is installed, controlled and used. A boiler’s age alone does not establish its efficiency. Our gas-use comparison illustrates the calculation without promising a saving for your property.

Can the new boiler go in a kitchen cupboard?

A cupboard may be suitable, depending on the model and the space available. The boiler needs the manufacturer’s required clearances and access for servicing, as well as suitable flue and condensate arrangements. Send Joe photos and measurements of the proposed location so he can assess it during the survey.

Can I move the boiler to a different room?

Ask Joe to assess your preferred position before choosing the appliance. Moving it can affect pipework, the flue route, drainage and installation access. The quotation should explain the proposed location and any additional work involved.

Can I change from a boiler with a cylinder to a combi?

A conversion may be possible, but it needs an assessment of your mains water supply and household demand. If you regularly use several hot-water outlets together, retaining a cylinder may be worth considering. Joe can discuss the space benefits and practical trade-offs for your home.

Do my radiators need replacing with the boiler?

Not automatically. Joe can assess their condition and suitability alongside the rest of the system. Any recommended changes to radiators, valves or controls should be explained in the quotation. See our central heating page for more about these options.

What should a boiler installation quotation include?

Ask for the proposed make and model, installation location, controls, any pipework or system work, removal arrangements and the total price. Joe can explain what is included and whether any work needs a further assessment. Send your postcode and job details to start your Newcastle installation enquiry.

How long will the installation take, and will I lose heating?

The time depends on whether this is a straightforward replacement, a relocation or a change of system. Heating and hot water will be interrupted while the appliance is changed. Joe can explain the expected schedule and disruption once he has assessed the job, rather than promising a fixed time before the survey.

What warranty and servicing will my new boiler need?

Warranty length and conditions depend on the chosen model and the manufacturer’s terms. Ask Joe to confirm the cover, registration requirements and service schedule for the boiler in your quotation. Keep the installation and service records. Explore our Baxi guide and boiler servicing page.

Tell us what needs attention.

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