If you are considering installing your own water heater to save money or test your DIY plumbing skills, please consider this. Your water heater installer is responsible for meeting current safety codes. If you install it yourself, that is now your liability. Water heaters can be very dangerous and knowing the dangers is critical to a safe install. Gas water heaters can be especially dangerous where carbon monoxide can escape in to your home killing everyone inside. Water heaters can explode especially if the Pressure & Temperature Relief Valve is not installed correctly. A fitting not secured properly can cause a flood. There are many dangers to water heaters. Hiring a professional and insisting on a building permit is very important. Let the professionals make sure your water heater is installed safely.