Ideal Vogue Max 32 Problems

The Ideal Vogue C40 combi boiler is designed to provide efficient hot water supply. However, some users have faced issues concerning the hot water flow rate. This article delves into these concerns and offers possible solutions.

Problem:

The hot water flow rate in the Ideal Vogue C40 combi boiler seems to be reduced, even though prior tests show that the cold water flow rate was adequate. The digital readout on the boiler indicates a hot water flow rate of approximately 12 litres per minute, even when the cold water flow rate measured 18 litres per minute. There’s also a noticeable discrepancy in the flow rate from different outlets – with the bath tap being even slower than the basin tap.

Possible Causes:

1. Isolation Valve: One of the first things that came to attention was the presence of an isolation valve on the cold inlet supply pipe to the boiler. Could this be restricting the boiler’s operating capacity?
2. Pipework Size: The size of the pipework feeding these outlets could be causing the discrepancy in flow rates. For instance, basin taps being 15mm while the hot pipe under the bath is 22mm but reduces to 15mm at the tap.
3. Boiler’s Documented HW Output: It is important to note that the documented hot water (HW) output in boilers is set under ideal conditions. Real-world performance can differ due to various factors such as mains water pressure and temperature, the desired HW output temperature, length and size of pipework, bends, valves, and types of outlets.

Solutions:

1. Replace the Isolation Valve: It’s essential to check if the isolation valve is full bore or reduced. If it’s a reduced bore isolation valve, it might be restricting the flow. Replacing it with a full-bore isolation valve could alleviate the problem.
2. Re-assess Pipework: All hot water pipes that are 22mm should ideally be 15mm. Making this switch can potentially improve the hot water flow rate to both the bath and basin taps.
3. Consider External Factors: Understand the mains water pressure and temperature, the required HW output temperature, the pipework, and the types of outlets used. Adjusting these factors might lead to improved performance.
4. Boiler Commissioning Benchmark: It’s essential to refer to the installer’s benchmark during the boiler commissioning. This can provide insights into the expected performance and any discrepancies noted.

Conclusion:

Hot water flow issues can be frustrating, but by systematically assessing the system, considering the solutions mentioned, and consulting with professionals, you can optimize your Ideal Vogue C40 combi boiler’s performance. Always ensure to collaborate with a certified plumber or technician to address any technical concerns.