![Better boilers feature adjustable-speed technology](http://hvacexpertisewashington.com/wp-content/themes/theme/assets/img/int-91-min.jpg)
Better boilers feature adjustable-speed technology
They all provide unquestionably similar AFUE ratings. I have been researching the latest innovations in gas boilers. My home’s boiler is over twenty years old. It has continued to function far longer than I ever expected. While the machine remains operational, I’ve noticed signs that it’s nearing the end of service life. The boiler now