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    Use of unvented cylinder as a heat store?!

    Because I don't have a thermal store but have two unvented cylinders available for use...!
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    Sabre Boiler Producing High Carbon-Monoxide Readings

    Flue system problem? If you are unsure about the engineer then speak to Gas Safe they are always happy to get involved, especially with a serious safety issue such as this.
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    a very slow dripping from joint. how to fix it. Can't be tightened

    Must be gas.....
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    Use of unvented cylinder as a heat store?!

    Please....can anyone point out the safety issues of using an unvented cylinder as a heat store (A sealed system closed circuit). It will be pressurised to 1 bar with a big expansion vessel and a 3 bar prv. Also there is the 8 bar temp / pressure relief also fitted on the cylinder. I can only...
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    1 3/4" thread.

    Dunno why it posted the same text... What I'm trying to do is use a 300l direct Megaflo as a heat store. When the solar buffer tank is hot then it will dump into the Megaflo. Then if I can get a couple of pipes in through the redundant immersion ports (there is a blanked off one in the middle...
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    1 3/4" thread.

    They only supply a blanking cap or a heater! I w
  7. A

    1 3/4" thread.

    They only supply a blanking cap or a heater! I want to connect a pipe!
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    1 3/4" thread.

    It's the Megaflo immersion thread. 1.75" says the maker, plus I compared with bsp size chart to nearest mm.
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    1 3/4" thread.

    A 1.75" bird in the hand is better than 2"bush..! No doubt you have some kind of "shed" where such obscure fittings are comfortably nestling...somewhere..!
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    1 3/4" thread.

    I measured it. Also it is described as that size in literature. It is steel. Wanted to fit a tapping or 2 onto a direct Megaflo....
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    1 3/4" thread.

    Thanks Dan, but it's a male thread I need. It is a female thread that I want to connect to...
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    1 3/4" thread.

    Hi. Does anyone know where I could buy a fitting with a male one and three quarter inch thread that will reduce in to something more regular? Google search doesn't work as it gives me 1" and 3/4" results!
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    Proposed Solar Thermal System. Ok, what if I.....

    Ok, I'll try it as I build it can change it later easily. Thanks.
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    Proposed Solar Thermal System. Ok, what if I.....

    Thanks for your clear and concise reply! Please expand upon your musing. Is there a fundamental design problem here or are you incorrectly assuming I would be using this system in the UK in winter? If I use a circulating pump to pump water from the "heat store" around the upper coil of the...
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    Proposed Solar Thermal System. Ok, what if I.....

    Ok, so the plan is to connect solar primary circuit to lower coil in a solar unvented cylinder, which will provide the DHW. So far so good, all as normal. The twist is that I have a 300l Megaflo Direct cylinder that i want to use as a thermal store (because I got it for free). What would...
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    Black MDPE pipe with chlorinated swimming pool water?

    Freudian slip - he imagines himself as a pimp sitting by my pool....
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    Black MDPE pipe with chlorinated swimming pool water?

    I mean 50m....!
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    Black MDPE pipe with chlorinated swimming pool water?

    ...whilst spring + autumn use will involve pool heating rather than heat dump purpose so any primary flow temp over 35°C will be useful if I can get it across 50mm of 22mm pipe without losing too much.
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    Black MDPE pipe with chlorinated swimming pool water?

    m not mm! Well half the reason is to use the pool as a heat dump to prevent excessive solar panel stagnation. No more than 10kW from solar panels at peak, heat store will divert to dump mode once it hits 80°C. Heat exchanger has much greater than 10kW transfer capacity. Was going to run pipes...
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    Black MDPE pipe with chlorinated swimming pool water?

    Thanks. Do you think a normal 15-60 circulator would suffice to push the primary water along 50mm of (suitably insulated) 22mm poly pipe (and back again!)?
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