First, we check for leaks or any abnormalities before checking the functionality. Any leaks or evidence of leaks will be identified and logged with the client before continuing.

• All the circuits are turned on individually, ensuring that all thermostats are opening the actuators and assigned to the correct zones. If we find any anomalies, we will bring this to your attention before moving on to the next step.
• Next, we check that the blending valve is mixing water into the floor at the correct temperature, and you have sufficient circulation from the heat source. In other words, we test if the ‘flow-temperature’ from the boiler is set correctly to achieve the floor temperature.
• Checking any two-port valves connected to the underfloor heating are opening and closing when asked to, and checking for wear and tear on the valves.
• Check the flow rate of each circuit individually according to the loop length. We will not know this exactly, but we can make a judgment by looking at how far the circuit is away from the manifold and the meterage of the floor. Generally, the longer the loop and the farther away, the higher the flow rate should be.
• If no circulation is detected identity the faulty ones and then shut off the water and take the flow regulator out and suck out the gunk with a hoover and put back. If this doesn’t resolve it, a new regulator will be needed at extra cost.
• Check the flow and return differentials of each circuit to prove the circuit is working and heat is returning on each loop.
• Lastly, we leave everything in working order and hand over.