Another high efficiency furnace installation by Verne & Ellsworth Hann and another customer who is happy with the quality of his new system as well as the professionalism used during the project. But what is the gray material on the supply ductwork on the right? We are getting that question more frequently. And it all has to do with efficiency and the building code enforced by the municipality in which you live.
As national building codes become more diligent about efficiency in all phases of homebuilding additional scrutiny is given to even the smallest facets. In this particular case the focus is on even the most minimal air leakage from the return air ducts to the furnace. In essence, if every seam and connection of the return ductwork in completely sealed, then there will be no air drawn in from the basement. The system becomes more efficient. Efficiency translates into less energy consumed and more energy dollars saved.
Most energy-conscious and code abiding installers seal ducts with a gray mastic. Gray because it’s close in color to sheet metal. Mastic is a pliable material that goes on soft and then hardens. it’s applied liberally in order to ensure it gets worked into all of the air gaps in the seams and joints.
To be clear, National Building Standards are often adopted by state building codes which, in turn are adopted by local municipalities. Not all municipalities enforce all of the codes. That is up to the discretion of that particular building department.
But, as the push towards greater efficiency increases, more municipalities are demanding compliance from the contractors who perform work in their cities.
Verne & Ellsworth Hann is up to speed with all of the building codes in all of the municipalities in which we work. As an educated consumer seeking multiple estimates for a new HVAC project, you need to be asking your contractor about his code compliance awareness and history.
For a more detailed reading of the building code as adopted from the Ohio Mechanical Code by the Board of Building Standards you can read the complete code standard chapter 4101:8-16-01 on Duct Systems here. Paying particular attention to sections 1601.4.1 through 1601.4.7 on joints and seams.
That’s a lot of detailed information to digest in order to understand why the installer is painting a gray substance onto the new ductwork of your new high efficiency furnace.
But rest assured that Verne & Ellsworth is familiar with all codes in all municipalities.
- George O.( Cleveland Heights, Boiler Installation, January 2018 )
Your company did an excellent job! We really appreciated how quickly your crew worked in order to get our heat back on as soon as possible. Everyone seemed very knowledgeable, professional and excellent in their work!
- Marianne P.( Aurora, Boiler Installation, December 2017 )
Thank you thank you! For your amazing response and difficult repair – I really appreciate it!
- Brian B.( Shaker Heights, Boiler Installation, January 2018 )
Bill carefully examined the old boiler and piping, checked all the radiators and came up with a replacement proposal. He explained two issues with the old boiler that other contractors did not notice or did not care to explain. The first was what’s causing the rust in the boiler and how he was going to minimize the issue in the new system. The second was how he would re-pipe the kitchen loop so the kitchen wouldn’t be so cold. Bill addressed each and every question I had. Although we received four bids that were comparable, we chose Bill Hann’s company because he was knowledgeable, thoughtful and detailed. The work was completed in two days by a great installer team. They were on time, professional and courteous. The new boiler and piping work nicely without any issues and we now have a comfortable kitchen to dine in. I’d highly recommend them.
- Allen P.( Shaker Heights, Boiler Installation, December 2017 )
I strongly recommend Verne & Ellsworth Hann without reservation. Choosing the right boiler was important and proper installation was critical. I was impressed with all aspects of the Verne & Ellsworth Hann organization. Most importantly, Bill Hann earned my trust. The installation team was excellent. They were experienced. They arrived precisely on time every day. They explained every step of the process. They worked as a team. They treated my home with extreme care, as if it was their own. The installation is a thing of beauty. Every time I go into my basement I smile. I now have a reliable, efficient system. I don’t usually take the time to write recommendations, but in this case I am doing so because it is so well deserved.
- John R.( Cleveland Heights, Boiler Installation, December 2017 )
Boiler has performed like a champ! Install is neat and clean. Instructions for next 3 months have been followed. New stat works well!