To make sure you're not testing too early, assume the sperm had very long lives (5 days is considered a very long sperm life) and that conception occurred then. Then allow 14 days for the embryo to implant and develop enough hCG to show up on a pregnancy test (96% of pregnant women will test positive by then.)
A gas water heater will recover in half the time of an electric unit. A 40-gallon gas water heater can recover in about an hour. Recovery for a 40-gallon electric water heater takes about two hours.
Gas water heaters also have a Vacation setting, which keeps the pilot light on but doesn't heat the water, so you save money on your gas bill when you aren't at home. Turn the gas water heater temperature down to Vacation before you leave, and turn it back up to normal heat when you get back.f you play with different heat settings, you can find a water heat setting on your gas water heater that works for all your needs. If you turn it down too low and you have a dish washer, it may have trouble cleaning the dishes properly because the water isn't hot enough.