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Avoid applying flames to thaw pipes. Do not try to thaw a pipe with a torch or other open flame because it could cause a fire hazard. Consider a hair dryer as a possible heat source (with caution).
If a faucet or pipe ends up freezing inside the house, it can be thawed by using an electric hair dryer, wrapping an electric heat pad around the pipe or by soaking towels in hot water and ...
Pipes exposed to "severe cold" including outdoor hose bibs, swimming pool supply lines, and water sprinkler lines. (If you have swimming pool or sprinkler supply lines, they needed drained too.)
Hot water service piping can also be traced, so that a circulating system is not needed to provide hot water at outlets. The combination of trace heating and the correct thermal insulation for the operating ambient temperature maintains a thermal balance where the heat output from the trace heating matches the heat loss from the pipe.
When heated and cooled pipes or heating cables share the same spaces as other building components, parasitic heat transfer can occur between refrigeration appliances, cold storage areas, domestic cold water lines, air conditioning and ventilation ducts. To control this, the pipes, cables and other building components must all be well insulated.
In temperate climates ventilation air may need to be heated during winter months. This will make the working environment more hospitable for miners, and prevent freezing of workings, in particular water pipes. In Arctic mines, where the mining horizon is above the permafrost, heating may not take place to prevent melting the permafrost.
Insulated hot water supply and return hydronic piping on a gas-fired boiler. Since pipework can operate at temperatures far removed from the ambient temperature, and the rate of heat flow from a pipe is related to the temperature differential between the pipe and the surrounding ambient air, heat flow from pipework can be considerable.
∎ Water well before a frost ― moist soil can hold up to 4 times more heat than dry soil. ∎ Using a thick layer of dried leaves, compost, leaf mold, or straw, mulch root vegetables.