Arrived onsite and customer had stated their 16 year old water heater had been shutting off Intermittently for the past few weeks and he wanted to replace it. Customer previously had a 40 gallon natural gas and we replaced it with a 50 gallon natural gas. Installed expansion tank due to pressure reducing valve on system. Water heater is on stand in garage with Ballard in front. Connected copper T&P line ran to outside, strapped water heater to wall with strapping, checked for gas leaks with leak detector, connected to existing venting with 3 metal screws, checked for water leaks once installed. Thank you for choosing CPI plumbing and heating.