If you are talking about a vehicle, then the coolant level is critical for generating heat. Check you vehicle coolant reservoir if it is empty, wait until the engine is cool and check the level of coolant in the radiator and fill as recommended with the appropriate kind of coolant then fill the reservoir to the level indicated.
no
Add an aquarium heater. Make sure you choose a heater with the correct wattage for your aquarium's water volume.
Flush and clean your heater radiator wich is located inside the car. No that is incorrect. All you have to do is add antifreeze to your reservoir keep adding it till you get heat. You may have to let your car sit awhile on the on position. I know this is your problem because it works in the warmer weather. Unless your thermostat is stuck and the heater was just blowing air off your motor but I doubt that. Make sure you add enough antifreeze though. You never add when your vehicle is hot and if you add in radiator make sure car is on. If you have to much water in it to add antifreeze there is a screw under radiator to release water from radiator. GOODLUCK
Yes
An average household is 4 people . They require a 40 US gallon heater. Add 10 gal for each additional person.
Not enough coolant, water pump and/or thermostat. Add fluid and check to see if there is a leak. If not it's your thermostat.
The first requirement for making frog tank water just right is to make sure that it is the right temperature for the type of frog. An under tank heater can be used for this purpose. The second is to add chemicals to the water to remove any chlorine.
Install a wall mount instant hot water heater under the sink. It might be best to put a small water heater under the sink. Another option is a circulating pump. If you have access to the plumbing all the way back to the water heater, you can add a hot water return line, then put in a pump that keeps the hot water circulating. If you do that you might want to add insulation to the hot water line.
You need to purchase a salt mix and add water. Then mix overnight and check the salinity the next day. You want it between 1020 and 1025. Also, make sure the water is the same temp as the aquarium. You may need a little heater in the salt water you are mixing.
You do not have to turn the heater on until you are ready to heat the water, some installers put a tee or bypass before the heater so the water does not go thru the heater many do not since the heater is on the clean side of the filter, some people just want a bypass valve their in case the heater fails they can keep the water flowing around the heater, Take the cover off, start the filter up, start vacuumimg, when ready add your chemicals. continue running the filter get your water tested, when you feel you are about ready too swim turn the heater on too warm the water if you desire to.
You do not have to turn the heater on until you are ready to heat the water, some installers put a tee or bypass before the heater so the water does not go thru the heater many do not since the heater is on the clean side of the filter, some people just want a bypass valve their in case the heater fails they can keep the water flowing around the heater, Take the cover off, start the filter up, start vacuumimg, when ready add your chemicals. continue running the filter get your water tested, when you feel you are about ready too swim turn the heater on too warm the water if you desire to.
You may need to add water to your cooling system.