Can I have underfloor heating in some rooms and radiators in others?

Yes, and this is one of the most popular approaches in Exmouth homes. A hybrid system gives you underfloor heating where you value it most (ground floor, tiled rooms) and radiators where it makes less sense to lift floors (upstairs bedrooms). Both can run from the same boiler or heat pump — the system just needs a mixing valve to supply the underfloor circuits at a lower temperature than the radiators.

Is underfloor heating worth it in an older Exmouth property?

It depends on the scale of work you are already doing. If you are renovating the ground floor and laying new flooring anyway, adding a wet underfloor heating system is well worth the relatively small extra cost. If you are not planning any floor work, retrofitting wet underfloor heating is expensive and disruptive. In that case, electric mats in bathrooms and radiators elsewhere is a more practical solution.

Does underfloor heating work with thick carpet?

It works, but performance drops significantly. Carpet insulates the floor, reducing heat output by 15–25% depending on the tog rating. If you want underfloor heating with carpet, keep the total tog (carpet plus underlay) below 1.5. Below that threshold, heat still transfers well enough. Above it, you are paying to heat the underside of your carpet rather than the room.

How much does it cost to run underfloor heating compared to radiators?

A wet underfloor heating system connected to a gas boiler typically costs 15–25% less to run than radiators because it operates at a lower water temperature. Connected to a heat pump, the savings are larger — up to 40% — because the heat pump runs at peak efficiency at low flow temperatures. Electric underfloor heating costs more to run than gas central heating due to higher electricity prices, but for a small bathroom heated for a few hours a day the difference is modest (roughly £30–£60 per year).

Will underfloor heating add value to my Exmouth home?

Underfloor heating is seen as a premium feature by buyers and can make your property more attractive, particularly in kitchens and bathrooms. It is difficult to put an exact figure on added value, but estate agents in Devon report that homes with underfloor heating and good energy efficiency attract more interest and can achieve higher asking prices. The real value is in reduced running costs and improved comfort while you live there.

How long does underfloor heating last?

Wet system pipes (typically cross-linked polyethylene, or PEX) have a projected lifespan of 50 years or more. Electric heating mats typically last 20 to 30 years. In both cases, the heating system will likely outlast the floor covering above it. The thermostat and pump (wet systems) may need replacing every 10 to 15 years, but these are inexpensive compared to the pipework.

Underfloor Heating vs Radiators: Which Is Right for Your Exmouth Home?

Underfloor heating promises even warmth and lower running costs. Radiators are cheaper to install and heat rooms faster. Which system makes more sense for your Exmouth home? This guide compares both on cost, comfort, efficiency and practicality.

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Head-to-Head Comparison

How underfloor heating and radiators stack up across the factors that matter most to Exmouth homeowners.

Upfront Cost

Underfloor Heating

Higher — £3,000 to £8,000 for a wet system covering a full ground floor. Electric mats for a single room cost £800 to £2,500. Best value when installed during a new build or major renovation.

Radiators

Lower — a full set of radiators for a 3-bedroom Exmouth house costs £2,000 to £4,000 installed. Replacing a single radiator costs £200 to £500. Significantly cheaper to retrofit.

Running Costs

Underfloor Heating

Wet systems are typically 15–40% cheaper to run than radiators because they operate at lower water temperatures (35–45°C vs 60–75°C). Electric systems cost more per kWh than gas, so they only save money in small, well-insulated rooms.

Radiators

Standard running costs for gas central heating. Modern condensing boilers are efficient, but radiators need water at 60–75°C to perform well — higher than underfloor heating, so the boiler works harder.

Comfort

Underfloor Heating

Even heat distribution across the entire floor — no cold spots, no hot wall near the radiator and a cold one opposite. Warm feet and a gentle, consistent warmth throughout the room. Most homeowners rate the comfort noticeably higher.

Radiators

Convection heating — warm air rises from the radiator, creating a temperature gradient (warm ceiling, cooler floor). You can feel the difference when standing near vs far from a radiator. Adequate but less even than underfloor.

Heat-Up Time

Underfloor Heating

Slower — wet systems take 30 to 60 minutes to bring a room up to temperature because heat must travel through the screed. Electric mats are faster at 15 to 30 minutes. Best used with a programmer so the floor is warm when you need it.

Radiators

Faster — radiators heat a room in 15 to 30 minutes. Ideal for homes where heating is switched on and off frequently or rooms that are only used at certain times of day.

Installation Disruption

Underfloor Heating

Significant for wet systems in existing homes — floors need lifting, insulation and screed add 50–75mm of height, doors may need trimming. Electric mats are far less disruptive and suit retrofits. Either way, easiest during a renovation.

Radiators

Minimal disruption. A plumber can replace or install radiators in a day with very little mess. No floor work required. The simplest option for existing Exmouth homes where you want heating without major building work.

Room Layout Freedom

Underfloor Heating

Complete freedom — no radiators on walls means you can place furniture wherever you like. Every wall is usable. This is a big advantage in smaller Exmouth homes and cottages where wall space is limited.

Radiators

Radiators take up wall space and restrict furniture placement. You cannot put a sofa or large piece of furniture directly in front of a radiator without blocking heat output. In small rooms, this can be a real constraint.

Maintenance

Underfloor Heating

Very low maintenance. Wet system pipes last 50+ years and have no moving parts. Electric mats have no serviceable components. The main risk is accidental damage if the floor is drilled into. Annual boiler servicing covers the heat source.

Radiators

Low maintenance but more than underfloor. Radiators need bleeding once or twice a year, valves can stick or leak, and the system may need a power flush every 5–10 years to clear sludge. Individual radiators can corrode and need replacing.

Heat Pump Compatibility

Underfloor Heating

Excellent — underfloor heating is the ideal partner for air-source and ground-source heat pumps because both work best at low flow temperatures. If you are considering a heat pump for your Exmouth home, underfloor heating will maximise its efficiency.

Radiators

Possible but less efficient. Radiators need higher flow temperatures to perform well, which forces the heat pump to work harder and reduces its coefficient of performance (COP). Oversized radiators can partially offset this.

Which System Suits Your Situation?

The best choice depends on your property, budget and how much building work you are willing to take on.

Choose Underfloor Heating If

You are building a new home or doing a major renovation
You want the lowest possible running costs long-term
You plan to install a heat pump now or in the future
You want maximum wall space in small rooms
You prefer even, gentle warmth rather than convection heat
You are laying new flooring (tiles, stone or engineered wood)

Choose Radiators If

You want the lowest upfront cost
You are heating an existing home with no plans for major renovation
You need rooms to heat up quickly on demand
You have thick carpet and do not plan to change it
You want the simplest possible installation with minimal disruption
Your budget does not stretch to underfloor heating right now

The Hybrid Approach: Best of Both

Many Exmouth homeowners are choosing a combination — underfloor heating downstairs and radiators upstairs. This gives you the comfort and efficiency benefits where they matter most, without the cost and disruption of a full underfloor system throughout.

Wet underfloor heating on the ground floor (kitchen, living room, hallway) where you spend the most time and where tiled or hard floors are common
Radiators upstairs (bedrooms, landing) where carpet is often preferred and rooms are used mainly at night
Electric underfloor heating mats in bathrooms and en-suites for warm tiles underfoot without the cost of extending the wet system
A single thermostat zone per area so you can control ground floor and upstairs heating independently

A heating engineer can design a hybrid system that runs from a single boiler or heat pump. The key is getting the flow temperatures right — underfloor heating needs 35–45°C while radiators need 60–75°C, so a mixing valve is used to supply each circuit at the correct temperature.

Underfloor Heating vs Radiators FAQs

Get Expert Advice from a Local Installer

The best way to decide is to get a professional assessment of your home. Browse our directory of local plumbers and heating engineers covering Exmouth and East Devon for a no-obligation quote.

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Ready to go ahead with underfloor heating? See our underfloor heating installation guide for full costs and what to expect. Sticking with radiators? Our radiator repair page covers common issues and costs. For a quick estimate on any job, try our cost calculator.