iHeat 24c - Chaudière centrale Halstead - Free user manual and instructions
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| Product Type | Gas Condensing Combi Boiler |
| Model | iHeat 24c |
| Brand | Halstead |
| Power Output | 24 kW (Central Heating) / 24 kW (Hot Water) |
| Efficiency | Up to 94% (ErP class A) |
| Dimensions (H x W x D) | 700 x 400 x 300 mm |
| Weight | Approx. 30 kg |
| Power Supply | 230 V / 50 Hz |
| Gas Type | Natural Gas (G20) / LPG (G31) convertible |
| Flue Type | Room-sealed, concentric (60/100 mm) |
| Water Pressure | 1.0 - 1.5 bar (recommended) |
| Hot Water Flow Rate | 11.5 l/min at 35°C rise |
| Expansion Vessel Capacity | 8 liters |
| Safety Features | Overheat protection, frost protection, pressure relief valve, flame failure device |
| Control Panel | Digital display with rotary dial and push buttons |
| Compatibility | Compatible with most standard system controls (e.g., room thermostat, programmer) |
| Installation Type | Wall-mounted |
| Noise Level | < 50 dB(A) |
| Energy Class | ErP A (heating) / A+ (water heating) |
| Maintenance | Annual service recommended by a Gas Safe registered engineer |
| Warranty | 2 years (subject to registration and annual servicing) |
Frequently Asked Questions - iHeat 24c Halstead
What should I do if my Halstead iHeat 24c boiler loses pressure?
If the pressure gauge reads below 1 bar, you need to repressurize the system. Locate the filling loop (usually a flexible hose with two valves) and open both valves slowly until the pressure reaches 1.0-1.5 bar. Then close both valves. If pressure drops frequently, check for leaks or consult a Gas Safe engineer.
How do I reset the boiler after a fault?
Press and hold the reset button (usually marked with a flame symbol) for about 3 seconds. If the boiler does not restart, check the error code on the display and refer to the manual. Common issues include low water pressure or lack of gas supply.
Why is my hot water not getting hot enough?
Check that the thermostat is set to a high enough temperature (typically 55-60°C). Also ensure the flow rate is not too high; reduce faucet flow if necessary. If the problem persists, the plate heat exchanger might need descaling or the boiler might require servicing.
What does the error code E119 mean?
Error E119 indicates a flame detection fault. This could be due to a faulty flame sensing electrode, a blocked flue, or gas supply issues. Turn off the boiler and contact a Gas Safe engineer for diagnosis.
How often should I service my Halstead iHeat 24c?
An annual service by a Gas Safe registered engineer is recommended to ensure safe and efficient operation. During the service, the engineer will clean key components, check flue gas readings, and verify safety devices.
Can I use the boiler if the condensate pipe is frozen?
No, a frozen condensate pipe can cause the boiler to shut down. Gently thaw the pipe using a hot water bottle or warm cloth (do not use boiling water). Once thawed, reset the boiler. To prevent freezing, insulate the pipe or keep heating on during cold weather.
What is the difference between combi and system boilers?
A combi boiler (like the iHeat 24c) heats water directly from the mains, providing instant hot water without the need for a separate hot water cylinder. A system boiler heats water stored in a cylinder for later use, allowing multiple hot water outlets simultaneously but taking up more space.
Why is my boiler making a banging noise?
Banging noises often indicate kettling due to limescale buildup on the heat exchanger. This can be resolved by a power flush or installing a water softener. Alternatively, it could be air in the system; try bleeding the radiators.
How do I adjust the central heating temperature?
Use the CH temperature dial or button on the control panel. Set it between 60-75°C for optimal efficiency. Higher temperatures may cause scaling, while lower may not heat the home adequately.
What is the lifespan of a Halstead iHeat 24c boiler?
With proper annual servicing and care, a typical combi boiler lasts 10-15 years. After that, efficiency decreases and repair costs increase. Consider replacing it if it requires frequent repairs or is over 12 years old.
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