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25362 - Thank you very much for your accurated information. TD2K - Thank you very much for your valuable advice. This type of helps meaning you are so dedicated in your career and man, "god bless you". I got me out of the problem. I am sure it will come some more as I live. Thank you.

Roger & Dave, You 2 this site so helpful and you are so dedicated. If one of you read my notes here, I would like to ask you another question: where can I get any manual/web site/books that show you how to calculate HVAC cooling/heating loads the conventional way (by hand). I want to look for...

imok2, thank you so much for your help. I am printing the form and study the request. DRWeig, thank you so much. I am wondering if you can detail or reference me to "personal exposure limit" and what kind of devices to detect the concentration. Thank you.

KRS Services, Thank you so much first. I think the temperatures to maintain in the basin is 40F. If outside temperature goes below 40F or worse below freezing then the control on the heater should kick-off. We have been recommended for 15KW. I think we will do that for now since I think it...

Fuel Control Workroom Ventilation Building: We have a writeup is readdressing the issue that they question the adequacy of the ventilation system in this explosion proof room. We have never before had reason to believe it was not functioning as designed, but when the IG visited he smelled JP8...

To 25362, 1. Does any of the sumps contain stagnant water; are operations of an intermittent character ? Stagnant 2. Are the sumps located beneath the CT ? Beneath 3. How do you control your cooling tower's (CT) operation in cold weather (louvres, fans, etc.) ? Fans 4. What is the returning...

Do you know if there are any source of reference for calculation? Thank you very much and special thanks to TD2K

I have (3) 21' x 7' x 6' Sump Dear Friends, We are being told to prevent this sump water from freezing. I don't know how to spec a heater that would be enough to keep this sump water around 40F when ambient temperatures fall below 40F. I think it will have a thermostat to control the heating...

I have (3) 21' x 7' x 6' Sump We are being told to prevent this sump water from freezing. I don't know how to spec a heater that would be enough to keep this sump water around 40F when ambient temperatures fall below 40F. I think it will have a thermostat to control the heating operation. This...

imok2, thank you so much for your info I wonder if there is a web site out there that including all the steps of load calculation (manually). Thank you.

I am a new HVAC Engineer. My boss assigned me to work on a new Fire Station HVAC Load calculation. I used Elite Software CHVAC and Trane Load Express to calculate, I came up with very low BTU/hr for heating load and he said on the RULE of THUMB (can anyone explain this on Cooling & Heating) that...

Stevenw, I am reading your advice carefully but I don't know which specific brand you have used. Are you talking about the maximum allowable length of the IR tube or space between the burners. Please reply with further advices. Thank you.

ChrisConley (Mechanical) Mar 18, 2004 Wow, 90-95% efficient. I didn't know that they had a condensing infrared heater. The last time I looked at the combustion efficiency of any infrared heater they were under 80%. **Thank you Chris for your comments. What they explained to me on their last...

Can experience technical personnels who are experience with Co Ray Vac products please share your current or past experience of Co Ray Vac products (Infrared Heating). I am about to make a major purchase on this product to heat our aircraft hangars. They are coming out with a new product that...

Thank you so much Mr. Braune and Mr. Saldanha.

Thank you very much Mr. Simpson!

Dear Friends, What resources to look at the minimum depth to prevent underground pipe from freezing (chilled water services with PVC). I am in Enid, Oklahoma. Thank you very much!!!

Thank you very much DCR1!

DRC1: Thanks for the valuable post! 1) Laying about 5000 sft of sod to prevent erosion problem. 2) Cleaning up all the dirt on the driveway and parking lot which built up recently because of heavy rainning. 3) Rebuild a piece of fence behind the new building to prevent things that have been...

This weekend we will have a crew coming to help since the weather is getting warmer. I am sorry that I didn't ask the question properly and now we are leading to a different objective. Can someone give me some of the cause of EROSION, what are the effects, and why the City is so concern about...