Efficient & Reliable Heat Only Boiler Installations You Can Trust
At Ignite Heating, our engineer has years of expertise in heat-only boiler installations, Ryan and his team are dedicated to delivering exceptional service. They will go above and beyond to complete every job efficiently and to the highest standard. You can count on them for top-quality products, outstanding workmanship, and reliable service.
Is a Heat-Only Boiler Right for You?
Heat only boilers are an excellent choice for large homes with high hot water demand and existing infrastructure for a hot water cylinder and tanks. They provide a consistent, reliable supply of hot water across multiple outlets and can be compatible with renewable heating options like solar panels. However, they do require more space and may not be as efficient or convenient as a combi boiler, especially in smaller homes or those with lower hot water needs.
If you have a large household, live in a low-pressure area, or need a system that’s compatible with older plumbing, a heat-only conventional boiler may be the right option. For smaller homes or households with less demand for hot water, a combi or system boiler may offer a more space-efficient and cost-effective solution.
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Pros & Cons Explained
Pro’s Of Heat-Only Boilers
- Suitable for High Hot Water Demand
- Compatible with Existing Infrastructure
- Works Well in Low Mains Pressure Areas
- Provides Backup Hot Water with an Immersion Heater
- High Reliability and Simple Design
- Ideal for Homes with Older Radiators
- Effective for Larger Properties
Con's Of Heat-Only Boilers
- Limited Hot Water Supply for Multiple Outlets
- Reliant on Mains Water Pressure
- Not Ideal for Large Homes
- No Backup Hot Water
- Potential for Slower Hot Water Output in Larger Homes
- Higher Demand on Boilers
- Compatibility Limitations with Solar Thermal Systems
Key Factors That Determine the Right Heat-Only Boiler Size
The correct heat-only boiler size depends on your property’s heating needs, including home size, radiator count, hot water usage, insulation levels, and professional heat-loss calculations. Understanding these factors helps ensure efficient heating, reliable hot water, and long-term performance.
Home Size and Radiators
- Small Homes (1–2 bedrooms, 1 bathroom, up to 10 radiators): A boiler with an output of 12–18kW is typically sufficient for smaller properties with lower heating requirements.
- Medium Homes (3–4 bedrooms, 1–2 bathrooms, 10–15 radiators): A 18–30kW boiler is better suited for medium-sized homes that need more heating power.
- Large Homes (5+ bedrooms, multiple bathrooms, 15+ radiators): For larger homes or properties with high heating demand, a boiler with an output of 30kW or more may be required.
Professional Assessment
The best way to determine the correct boiler size is to consult our qualified heating engineer. He can assess your property’s heating requirements, consider factors like heat loss and water usage, and recommend the ideal boiler size for your home.
If you’re ready to upgrade or need further guidance, contact us for a free, no-obligation quote and personalised advice on the perfect heat-only boiler for your needs!
Hot Water Demand
Heat-only boilers work alongside a hot water cylinder, so the size of the cylinder also impacts your boiler choice. Homes with multiple bathrooms or high simultaneous water use (e.g., several showers running at once) will need a higher kW boiler to meet the demand.
Insulation and Efficiency
A well-insulated home may require a smaller boiler compared to an older or poorly insulated property. Good insulation reduces heat loss and can lower the output needed to heat your home effectively.
FREQUENTLY ASKED QUESTIONS
What is a heat-only boiler?
A heat-only boiler, also known as a regular or conventional boiler, provides hot water for your radiators and a separate hot water cylinder. It works with a cold water storage tank and an expansion tank, often located in the loft.
How long does a heat-only boiler installation take?
Installation typically takes 1-2 days, depending on factors such as the complexity of the system, pipework modifications, and whether you’re replacing an existing boiler.
Do I need to replace my hot water cylinder with a new boiler?
Not always, but if your existing cylinder is old or inefficient, replacing it may improve the overall performance of your system.
How does a Heat Only Boiler work?
A heat-only boiler, also known as a regular or conventional boiler, works by heating water for both central heating and hot water systems, but it relies on additional components like a hot water cylinder and a cold water storage tank. Here’s how it works:
Cold Water Supply: Cold water is drawn from a storage tank, usually located in the loft, and supplied to the boiler.
Heating Process: The boiler heats the water using a heat exchanger, which is powered by gas, oil, or electricity, depending on the model.
Central Heating: Once heated, the water is pumped to the radiators throughout the house, providing warmth. The boiler works in conjunction with a pump to ensure efficient circulation.
Hot Water Supply: Hot water is also stored in a separate hot water cylinder, ready for use when you need it. The cylinder ensures a steady supply of hot water, even if multiple taps or showers are running at the same time.
Thermostat Control: The boiler’s operation is controlled by thermostats and timers, allowing you to set desired temperatures and heating schedules for both hot water and central heating.
Heat-only boilers are ideal for larger homes or properties with high water demand, as they can supply hot water to multiple outlets simultaneously. However, they require more space for the additional storage components.
How much does a heat only boiler cost?
The cost of a heat-only boiler can vary depending on the model, brand, and installation requirements. On average, the boiler unit itself can range from £1,500 to £5,000, while installation costs depend on factors like whether you’re replacing an existing boiler or upgrading your system.
For a more accurate idea of pricing, visit our installation prices page. You’ll find information about our competitive prices, including options for Baxi, Worcester Bosch, and Vaillant boilers. Check it out to see how we can provide a high-quality, cost-effective heating solution for your home!
