A Comprehensive Guide To Commissioning Underfloor Heating Systems

Underfloor heating is gaining popularity because of its comfort and efficiency, often better than old-school heating methods. It keeps your place warm evenly, says goodbye to those annoying cold spots, and scores big on saving energy. Plus, it looks good and doesn’t take up much space.

So, let’s talk about underfloor heating commissioning—a crucial step to ensure your system works like a charm. Commissioning deals with any potential issues, fine-tuning your system and making sure it’s performing at its best. So, if you’re into feeling cosy and saving energy, understanding how to commission your heating system is key to making your home feel just right.

Fiona Peron, ⭐️⭐️⭐️⭐️⭐️ Google Review

“Next Level recently installed underfloor heating pipes and screed to our self-build. After a number of frustrating and unsatisfactory dealings with other tradespeople, it was such a pleasure to deal with a professional, efficient and friendly company.
Alan and his team delivered on their promises from start to finish. They turned up when they said they would, did a first-class job laying both the pipes and the screed, and communicated well with us before, during and after the job was completed. It was clear to see that all of the team take huge pride in their work. I wouldn’t hesitate to recommend their services to anyone. Very competitively priced too!”

What is underfloor heating?

Underfloor heating is a great way to heat up your space by putting heating components under the floor. It sends warmth up, making the whole room cosy and comfortable.

There are two main types: one uses electric cables or mats, and the other uses warm water in pipes.

This method is ideal because it removes those big old radiators, making your place look better and giving you more room. Plus, it saves energy by spreading the warmth around evenly. People love underfloor heating because it’s comfortable, efficient, and looks sleek.

Importance of commissioning

Think of underfloor heating commissioning as a comprehensive check-up for your heating system. It involves careful testing and adjustments to prevent future problems and ensure everything runs smoothly. For underfloor heating, commissioning is the act that ensures both comfort and efficiency.

It’s more than just fixing issues—commissioning is about making your heating system work at its best. It’s the way to keep your home warm, save on costs, and ensure your system lasts a long time. It’s a complete approach to keeping your heating setup in perfect condition.

Pre-commissioning checklist

Prepare for underfloor heating commissioning by following this thorough pre-commissioning checklist to guarantee a correctly set up and efficient system:

Assess building suitability:

• Verify the suitability of the building for underfloor heating.
• Check insulation levels in walls, floors, and ceilings.

Calculate heat loss:

• Determine the heating load by calculating heat loss in each room.
• Consider factors such as room size, insulation, and external temperatures.

Ensure proper insulation:

• Confirm adequate insulation for the underfloor heating system. Address any gaps or areas lacking insulation to optimise efficiency.

System design and layout:

• Develop a well-thought-out system design based on the calculated heating load.
• Plan the layout, considering room usage, furniture placement, and potential obstructions.

Select appropriate components:

• Choose the right heating source (electric or hydronic) based on your needs.
• Select suitable underfloor heating pipes or cables according to the system type.

Verify floor coverings:

• Check compatibility with different floor coverings.
• Ensure the chosen floor covering allows efficient heat transfer.

Confirm adequate spacing:

• Verify the spacing between heating pipes or cables for even heat distribution.
• Adjust spacing based on specific requirements for each room.

Pressure testing:

• Conduct a pressure test to identify and address any leaks in the system.
• Ensure the system can maintain pressure without issues.

Hydronic system fill and purge:

• For hydronic systems, fill and purge the system with the appropriate fluid.
• Remove any air pockets to optimise heat transfer.

Electrical connections:

• Verify all electrical connections for electric underfloor heating systems.
• Ensure secure and properly insulated connections to prevent issues.

Thermostat configuration:

• Configure thermostats to desired settings for optimal comfort.
• Ensure compatibility with the underfloor heating system and other heating sources.

Conduct performance tests:

• Perform initial performance tests to confirm the proper functioning of the system.
• Address any anomalies and fine-tune controls as needed.

G Gigi, ⭐️⭐️⭐️⭐️⭐️ Google Review

“Exceptional Service! Highly Recommend! We had underfloor heating installed this week, and I can’t speak highly enough of Alan’s work. From start to finish, he was professional, punctual, and incredibly knowledgeable. He took the time to explain the entire process, answered all our questions patiently, and made sure everything was done to the highest standard. The quality of the installation is excellent—neat, efficient, and clearly done with care and expertise. Alan and his team were also a pleasure to have around—friendly, respectful, and trustworthy.”

👉 Want the same results? Book your free expert survey today.

Water System Commissioning

Ensure a smooth operation of the hydronic system by following these steps:

1. System Filling

Start by filling the hydronic system with water or a glycol mixture. This primes the entire system for efficient operation.

2. Pressure Testing

Perform a pressure test to identify and fix any potential leaks. This guarantees the system can maintain the required pressure for effective operation.

3. System Purging

Remove air pockets from the system to enhance heat transfer. Purging eliminates trapped air, allowing for optimal circulation of the heating fluid.

4. Balancing Flow

Achieve a balanced water flow throughout the system to ensure even heating. This prevents any parts of the underfloor heating system from receiving too much or too little hot water.

5. Temperature Control Settings

Configure temperature controls on the manifold or boiler to heat water to the desired temperature for maximum comfort.

6. Fine-Tuning Controls

After the system is up and running, fine-tune controls and settings as needed. This involves adjusting flow rates and temperatures to achieve the desired heating outcomes.

Not sure where to start?
👉 Get free expert advice from Scotland’s UFH specialists.

Electric System Commissioning

Here’s a guide to checking and ensuring the smooth operation of your electric underfloor heating system:

1. Verify Electrical Connections

Check all electrical connections for integrity, ensuring secure wiring to prevent potential electrical issues.

2. Set Thermostat Configuration

Configure the thermostat settings to your desired temperature and heating schedule, ensuring compatibility with your specific electric underfloor heating system.

3. Check Heat Cable or Mat

Ensure the heating cables or mats within the floor structure are properly installed and in good condition, with even spacing for uniform heat distribution.

4. Insulation Resistance Test

Conduct an insulation resistance test to confirm proper insulation of electrical components, preventing electrical leakage and ensuring user safety.

5. Perform Continuity Testing

Test the continuity of heating elements to ensure their functionality, guaranteeing the system effectively generates and distributes heat.

6. Verify Grounding

Check the grounding of the system to enhance safety measures. Proper grounding helps dissipate excess electrical charge, reducing the risk of electrical issues.

7. Activate the System

Activate the electric underfloor heating system and monitor its performance. Assess the heating response, ensure consistent warmth, and address any unexpected behaviours for optimal functionality.

Not sure where to start?
👉 Get free expert advice from Scotland’s UFH specialists.

Final thoughts

In conclusion, underfloor heating commissioning is crucial for optimal performance, comfort, and energy efficiency. From meticulous checks to fine-tuning controls, it ensures seamless operation. Elevate your heating experience with Next Level—experts in underfloor heating solutions. Contact us for personalised assistance in achieving the perfect warmth for your home or business in Glasgow, Edinburgh, and surrounding areas.

Donald Martin, ⭐️⭐️⭐️⭐️⭐️ Google Review

“Thanks to Gordon and the team for a great job installing the pipe work for our underfloor heating, neat and tidy job done on time with no issues. Gordon kept me well informed of the work taking place and asked me any relevant questions before doing anything. I would highly recommend. Thanks Donald”