給湯ボイラー交換工事①

Replacement from Noritz water heater OTQ-403FF to OTQ-4706FF-RC [successor model]. Replacement parts will be discontinued after 10 years from the date of manufacture. Therefore, perform regular maintenance on combustion equipment, and replace parts due to aging deterioration as soon as possible. ＃hot water boiler ＃Boiler replacement work ＃copper tube ＃brazing copper pipe ＃brazing ＃copper pipe #japan #Hokkaido #Copper tubing #Leak #Boiler #works