That water is used in the cold taps in your bathroom and for the heated water you use. Don't drink from these taps.
outside= the sun, radiation from buildings which have the heating on (see snow melt on roofs which have the heating on and no loft insulation), body warmth inside= central heating, fire
We insulate lofts because heat rises, so if you dont insulate the loft all the heat will escape. So if you put the heating on, and your loft is insulated, the heat will rise but stay in and not escape.
A cold water tank (and pipes) in the loft is insulated to prevent frost damage during winter. The hot water cistern is insulated (lagged) all the time, to reduce heat loss and lessen the time the element is using electricity in heating the water inside.
• Double Glazing on Windows • Underfloor Heating • Loft Insulation • Draft Excluders • Wall Cavities
Saves money on heating cooling since heat or cold from outside transferred through roof/attic.
Depends on where exactly it is situated in your loft. What you must remember it will be taking up space in the loft which is why you are looking for a loft conversion in the first place. First thing is to call in a few loft conversion specialists to take a look and they can best advice you when on site.
I reckon there is no air vent pipe on the drain line of the toilet you are flushing and the siphon action is sucking out the water in the loft toilet also.
No heating water removes temporary hardness,or dissolved sediments in the water and deposits them in the hot tank so the water is partially de-ionised. I think people worry that hot water is derived from water from the cold storage tank which might be open to the elements in the loft.
I recently had water overflowing from my central heating header tank. I replaced the ballvalve, which had no effect. I isolated the water supply, and it still overflowed (about 1 gallon per week). In this situation, the only way for water to get into the central heating system was via the coil in the copper storage cylinder. If your central heating header is higher than your cold water storage, then it would happen the other way round. I hope this is not your problem, or you are competent at diy, as the plumbers will charge
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