Jignesh
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Jignesh's Discussions

Cost to replace a boiler for 210 units building

Started this discussion. Last reply by David Butler Mar 6. 1 Reply

I am living in a building. It has 15 floors and 215 units. About 1000 individuals live in this buildingWhat size of boiler is required for this big building ? Will it be 750 gallons OR more OR less…Continue

Efficiency of furnace

Started this discussion. Last reply by Liam Smith May 31. 18 Replies

I hear all the time that furnace has 90% - 95% efficiency.How is the efficiency of furnace counted? When it says 90 % efficiency, what's meant by that? 90 % measured against what? What's 100…Continue

Best brands for furnace

Started this discussion. Last reply by Franco Oyuela May 9. 3 Replies

I am trying to find out which are good brands for furnace.I tried to google, but can't find proper answer.Please let me know, if I want to change my furnace, which brand is good and how does it…Continue

 

Jignesh's Page

Latest Activity

Liam Smith replied to Jignesh's discussion Efficiency of furnace
"Efficiency of furnace is calculated or measured by AFUE(Annual Fuel Utilization Efficiency). AFUE is the ratio of annual heat output of the furnace or boiler compared to the total annual fossil fuel energy consumed by…"
May 31
Shane S liked Jignesh's discussion Efficiency of furnace
May 28
John White replied to Jignesh's discussion Efficiency of furnace
"The efficiency of a furnace is the ratio of useful output to heat input. Even efficiency of the furnace can be determined by direct and indirect methods. The efficiency of the furnace can be computed by measuring the amount of fuel consumed per unit…"
May 28
Scott Katznelson replied to Jignesh's discussion Efficiency of furnace
"It is called the Distribution Efficiency Table. Here is a link to a PDF of it: https://energy.mo.gov/sites/energy/files/bpi-distribution-efficiency-table.pdf Hope that helps"
May 10
Franco Oyuela replied to Jignesh's discussion Efficiency of furnace
"For example: if a furnace has an AFUE rating of up to 98%, which means that up to 98 cents of every $1.00 of heating energy expense warms your home. Before purchasing this appliance, read important information about its estimated annual energy…"
May 9
Franco Oyuela replied to Jignesh's discussion Best brands for furnace
"Do you already know Goodman? Goodman is one of the biggest names in home heating and energy-efficient home comfort. That’s because Goodman lives up to its name in a big way, with time-tested energy-efficient technology, highly-durable…"
May 9
David Butler replied to Jignesh's discussion Cost to replace a boiler for 210 units building
"Your question involves high-rise multifamily and thus is beyond the scope of this forum. In general, the size of the replacement boiler should be based on a proper load calculation which accounts for the building's exposed surface area,…"
Mar 6
Jignesh posted a discussion

Cost to replace a boiler for 210 units building

I am living in a building. It has 15 floors and 215 units. About 1000 individuals live in this buildingWhat size of boiler is required for this big building ? Will it be 750 gallons OR more OR less ?Boiler seems to be breaking down frequently. How much does it cost to replace existing boiler (Boiler and Installation) ? Boiler is located at the top of the roof. Please provide breakdown of the cost as Cost of boiler + Cost of Transportation + Cost of Lifting boiler to the top of roof + Cost of…See More
Mar 5
Eric Kjelshus replied to Jignesh's discussion Efficiency of furnace
"10-12" liners are not made. Biggest made I find is 6" Flue temp on gravity is above 800' most 80% gas or lp are in the 350-380'. If a low end replacement is put in goes from quite to very very noisy"
Feb 24
John Nicholas replied to Jignesh's discussion Efficiency of furnace
"Any of the various energy modeling programs would give you a starting place. Model the ducts in various places and with different insulation levels.   I know you will not forget to seal the ducts."
Feb 23
John Nicholas replied to Jignesh's discussion Efficiency of furnace
"That is why gravity systems are much less popular then 50 years ago.   It could easily be improved by installing a chimney liner in that huge masonry chimney to reduce the amount of draft needed and the need for keeping it warm. You could…"
Feb 23
Jim Baerg replied to Jignesh's discussion Efficiency of furnace
"This is a great discussion.  I'd like to ask a question about the distribution contribution to system efficiency. I remember a matrix (from BPI, I think) that gave duct distribution efficiency based on insulation/no insulation,…"
Feb 23
Eric Kjelshus replied to Jignesh's discussion Best brands for furnace
"Its more about the install and air flow than the box brand,  Most brands about the same if you get higher end not the builder grade.  Most brands use the same TXV's same compressor same gas valve same blower motors same Inducer…"
Feb 22
Eric Kjelshus replied to Jignesh's discussion Efficiency of furnace
"OK lets say you have a gravity air system with a 80% burn on heat exchanger with out the 8" pilot assembly burning 25 therms of nat gas a mo.   The whole system to keep the flue warm and burner from condensating is just 36.6% …"
Feb 22
John Nicholas replied to Jignesh's discussion Efficiency of furnace
"System Efficiency is great.  Not much use, if you don't intend to fix the various problems with the system.  Not much use for comparison shopping for a new unit. If you are energy modeling, it would give you a great check on the duct…"
Feb 22
John Nicholas replied to Jignesh's discussion Efficiency of furnace
"Furnaces and all HVAC Equipment is rated by AHRI.  You can get the certification as to the actual ratings from their website. AFUE is the essentially the difference between Input Energy and Output Energy.   So a 100k …"
Feb 22

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At 5:29pm on February 21, 2018, Diane Chojnowski said…

Hi Jignesh,

Welcome to Home Energy Pros Forum. Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos, and upcoming events. If you're blogging about home performance, this is the place for you!

Thanks!

Diane, HEP Forum Moderator

 
 
 

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DIY Filter Solution for an Evaporative Cooler, anyone?

Started by Leslie Jackson in HVAC. Last reply by Daniel Baur-McGuire Aug 13. 6 Replies

Apply now for the Jon Siemen Memorial Scholarship!

Started by Diane Chojnowski in General Forum. Last reply by Quinn Korzeniecki Aug 9. 1 Reply

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AccuFrame Water Test

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AccuFrame Water Test

In this short video, water is used to visualize air leakage sites that are present in the majority of framed walls in the US. New regulations require better ...
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