Where it is makes no difference, as long as it is vented. If you are asking if it can be hooked up outside, it could be, but unprotected, it would not last very long and for either gas or electric, rain would be an issue.
One goes from the heater core to the water pump, the other goes from the heater core to the intake manifold.
You're scaring me! Get an electrician!
Hook it up on the cold inlet side where you have room.
Just un hook the hose's from heater core and put a piece of pipe in them or something and hook them together.
Unhook the two hoses going to the heater core. Use a hose clamp to hook a garden hose onto one of the stems from the core. Turn the water on full blast. Run the water through until clear water comes out.
It will not work. It will work, but you will only receive 25% of the rated output of the tank. A 3000 watt heater will only product 750 watts at 110 volts.
of course you can!
There is no vent pipe on top of a hot water heater. Mobile home or not. You must be thinking of something else. The HW tank is only vented by a Pressure Relief Valve vented to the drain.
By Andreina Urdaneta A clean water heater will heat and maintain water better and last longer. Once a year, flush your water heater, and in extreme hard water areas, at least twice a year. If you feel up to the challenge, here are some tips to help you in a basic cleaning. 1 Turn the water heater and the cold water supply to the water heater off. 2 Hook a high-quality garden hose to the drain valve, and place the other end in an area where hot water will not cause damage. 5. Open the drain valve. 6. Disconnect the cold water pipe on the top of the water heater. This step will let air into the water heater so it will drain. When the water heater is empty, close the drain. 8. Pour tile cleaner into the cold water, leave for a couple of hours and drain the detergent out of the tank. 10. Reconnect the cold water supply to the water heater. Open the cold water valve and let the water heater flush for a couple minutes. 12. Close the drain valve and open the hot water faucet nearest to the tank, and let the water heater fill. 13. When water starts to come out of that faucet, reopen the drain and let the water heater continue to rinse. After all the air is out of the water heater, turn it back on. Take care of your water heater, and it will take care of you. If you keep ignoring the task, your water heater may just leave you in the cold.
Electric water heaters are big towers that hook up usually in basements and they just allow you to have warm water. You can usually find more information by doing by searching online.
If it's the one in the engine bay you talking about, there is one that connects to the heater tap on joint to the heater hose.
residential? commercial? new ? replacement? if its a new water heater in a new home then the easiest way is to buy copper flex's and a gas flex and make sure you have low pressure gas at your gas stop like around 10 to 14" water column. Make sure you have a cold shut off on your cold water line before you hook up to the water heater and in some states they require a expansion tank. One good rule of thumb is if you have a check valve somewhere around your water meter or if on a well by your pressure tank then its a good idea to put a expansion tank.