Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
Derating NG fired boiler for altitude
Started a new thread to not distract from the current thread the quote by @Zman above came from.Zman said:
They have a test facility at 9,600' in Breckenridge which gives them the most accurate altitude deration in the business.They run very well at altitude.
The WHB series is my favorite. The WHB155 with 10-1 turndown would be about right.
What would be the proper way to calculate this? ...being right around the corner from Breck in the back of the Cove at 9200' Is there a formula some where on the Lochinvar site?
I have worked through the SlantFin app in detail room by room getting me to 141,000 Heat Loss (micro zoned).
Our InDirect is an HTP SSU-60 that wants 174,000 for it's first hr rating.
My next step on heat loss will be to use HeatLoadPro, but currently working my way through Modern Hydronic Heating and idronics publications.
- 117.3K All Categories
- 82.7K THE MAIN WALL
- 2.7K A-C, Heat Pumps & Refrigeration
- 43 Biomass
- 400 Carbon Monoxide Awareness
- 7 Chimneys & Flues
- 1.6K Domestic Hot Water
- 4.3K Gas Heating
- 106 Geothermal
- 148 Indoor-Air Quality
- 2.7K Oil Heating
- 45 Pipe Deterioration
- 674 Plumbing
- 4.8K Radiant Heating
- 353 Solar
- 13.2K Strictly Steam
- 2.9K Thermostats and Controls
- 47 Water Quality
- 586 Buy, Sell, Barter
- 31 Industry Classes
- 64 Job Opportunities
- 11 Recall Announcements