Gas or Oil Heating Appliance Measurement Guides

Measurement Guides and Forms for Gas or Oil Heating Appliance Chimney Liner Installation

Over the several years that we have been in business, we understand there are many measurements to gather before being able to put together a parts list for your gas or oil chimney liner installation. That's why we've compiled a list of common installations, each having their own tailored measurement form. Simply choose the image below that most resembles your installation setup. You can fill out a form online with all of the measurements or you can print a hard copy list of measurements and send it in to us. Either way works for us! One of our Certified Technicians will put together a parts list for you and send it to your email address.

Easy to use measurement forms for your gas or oil chimney liner installation. Simply fill out the form and we will put a parts list together for you!

Gas Fuel Heating Appliance Chimney Liner Installation

Gas fired water heater, furnace, or boiler

Oil Fuel Heating Appliance Chimney Liner Installation

Oil fired furnace or boiler

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Our 316Ti flexible chimney liner and chimney liner components have passed the rigorous testing at the Underwriters Laboratories with best in class status and are UL Listed. So if you are looking for UL listed chimney liner sold directly to homeowners, then look no further than Rockford Chimney

Customer Testimonials

Back in July you gave me excellent advice re. sizing/purchasing a flue liner for the chimney associated with my wood stove. I'd like to thank you once agai... More

—AE Northfield, MN

A few weeks ago I ordered a chimney liner system for my fireplace insert. Your salesman recommended the liner system plus the insulating blanket. I just wa... More

—AH Happy customer

Just got around to installing my new smooth flexible liner and deluxe terra cotta cap (wow). The quality of your product is second to none. Very pleased an... More

—B.B. from Massachusetts

Thanks so much for the great tech service from Dennis, very knowledgable, friendly and proffessional.Your website is the best, beats your competition by fa... More

—Bill in Knoxville

Sue and Dennis, I received the final part of my order yesterday (the chimney cap that actually fits over the chimney chase). It looks wonderfu... More


Hello, I was shopping for an fireplace insert and called RCS to ask why they were so much cheaper than my local guy, the reply was " we sell thousand of th... More

—Chris, PA.