Using anti freeze in a domestic central heating system

[Dave Liquorice]

What cold surface? Everything will be warmed by the permanent pilot...

[Peter Hill]

You may think.

I had the pleasure of cutting holes the sheet metal of the combustion chamber and flue draught diverter to fit glass windows so the condensation on the cast iron heat exchanger could be mapped. Where it was and how long it took to clear.

[polygonum]

Isn't that a consequence of setting the zero point, setting boiling point, and making a decision to divide the range into 180 degrees? (No accident that is expressed in degrees. Nor that it is equivalent to two right angles in the geometric equivalent.) You cannot get all three at numerically "nice" points on any equal-division scale unless they fall there.

[Tony t]

replying to Peter Hill, Tony t wrote: Just found this forum when looking up amount of Antifreeze to use. Couple of points, first is that several commented day about frost stats which implies heating left on but this could be more expensive than the anti freeze and less reliable. Draining a heating system is far more complicated than most domestic drinking water systems. Oh and one comment about no water supply to heating system, combos must not have a fixed supply. I drained my heating this winter as I was away for months, took a day to get it filled and heating the house which was not good in sub zero temp. Here in Austria anti freeze is quite normal.

[tabbypurr]

You're replying to a 2014 question. And this is not a forum. Use a sane portal to uk.d-i-y or you will be ignored by 98% of posters.

NT