Case study: Gary Court
What we did
A complete dilapidation inspection was conducted, identifying the following:
1. The grate had collapsed with the grate teeth lying on the ash receiver floor.
2. The frame of the grate had disintegrated due to what appeared to be severe overheating.
3. The combustion chamber firebricks were cracked and dislodged. Evidence of severe overheating or prolonged very high temperatures.
4. The heat exchanger was clogged and covered in flue ash and soot. This is evidence that either no or very little maintenance was ever carried out.
5. The system appears to have been installed without a Back End Protection circuit or BEP. The BEP ensures the boiler circulates water around the water jacket to raise the boiler to operating temperature quickly, before opening a three port valve to allow the main circuit to be heated. The damage caused to the boiler is due to excessive and prolonged periods of high temperatures.
The solution
As a result of the biomass boiler breakdown, VHL took full responsibility for providing heating and hot water to the residents affected in this building; preventing the need for alternative accommodation.
Step 1
An oil-filled boiler was installed as a temporary measure, with 12 hours of the client request. It was regularly monitored by VHL engineers and topped up to ensure no disruption in services and engineers conducted resident satisfaction.
Step 2
A gas boiler present at the property was fixed, which provides the heat on a temporary basis. The client was made aware that the gas boiler, although sufficient in the summer, would not be adequate for coping with demands in the winter and a permanent refit would need to be done.
Step 3
A quotation was provided to replace the biomass boiler as per a specification issued by a consultant.
Step 4
The client approved the quote provided. The work began with minimal mobilisation time, with 4 x Commerical Biomass & Gas engineers (Duel skilled)
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