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Farm Building and Infrastructure
Renewable Energy
Wood biomass dodgy installer help/advice appreciated
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<blockquote data-quote="Half Pipe" data-source="post: 3375350" data-attributes="member: 45670"><p>an 80kw boiler sounds more suitable for what you are trying todo, as even at your peak demand of 56kw, it has spare to charge the buffer tank for use when fuel has burned out.</p><p>but a 3000l tank doesn't have much kw capacity</p><p>it takes about 11.6kw to raise temperature of 1000l water by 10 degrees c.</p><p>so a 3000l tanks has capacity of about 35kw per 10degree of difference,</p><p>so if boiler heat full tank to 90c</p><p>and you allowed tank to drop to 40c before lighting boiler again in the morning for instance,</p><p>that would give you 175kw (35x5) reserve, but that's only 3 hours at your current 56kw demand.</p><p>if you have your boiler set at 90c, system will need mixer valve to bring water temp down to safer level and 40c is quite low to heat radiators or domestic hot water.</p><p>so temperature difference might be more like 50-75c , but that would half the reserve calculations above.</p><p>I'm not an expert, just got a kean interest in wood batch boilers,</p><p>hope what I am adding to this thread is of some help</p></blockquote><p></p>
[QUOTE="Half Pipe, post: 3375350, member: 45670"] an 80kw boiler sounds more suitable for what you are trying todo, as even at your peak demand of 56kw, it has spare to charge the buffer tank for use when fuel has burned out. but a 3000l tank doesn't have much kw capacity it takes about 11.6kw to raise temperature of 1000l water by 10 degrees c. so a 3000l tanks has capacity of about 35kw per 10degree of difference, so if boiler heat full tank to 90c and you allowed tank to drop to 40c before lighting boiler again in the morning for instance, that would give you 175kw (35x5) reserve, but that's only 3 hours at your current 56kw demand. if you have your boiler set at 90c, system will need mixer valve to bring water temp down to safer level and 40c is quite low to heat radiators or domestic hot water. so temperature difference might be more like 50-75c , but that would half the reserve calculations above. I'm not an expert, just got a kean interest in wood batch boilers, hope what I am adding to this thread is of some help [/QUOTE]
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Wood biomass dodgy installer help/advice appreciated
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