Steven Lewis
  • Male
  • Larned, KS
  • United States
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Latest Activity

Steven Lewis replied to William Fisher's discussion Can tankless water heaters provide hot water even when the groundwater is fairly cold?
"Look at reducing the ambient humidity in the home.  The dew point is the key to the condensation.  Raise the temp of the water above the dew point and the moisture goes away.  However you will be flushing money and energy down the…"
Apr 24
Steven Lewis replied to Miguel Orduno's discussion Target superheat formula in the group HVAC
"Target SH = [(3 x indoor wb) - 80 - ambient] / 2 (°F) Usually, if you are charging an ac , the manufacturer gives you a superheat range they want the equipment to operate at  (usually 6-8 degrees)   The higher the wetbulb the more…"
Feb 12
Steven Lewis replied to Miguel Orduno's discussion Target superheat formula in the group HVAC
Feb 12
Steven Lewis replied to Miguel Orduno's discussion Target superheat formula in the group HVAC
"You take the Indoor Wet Bulb and the Outdoor Temp"
Feb 12
Steven Lewis replied to Bob Blanchette's discussion How does Cycles Per Hour affect real world AFUE?
"In my opinion you are trying to get very detailed about equipment that is designed to perform in a wide range of climates and environments.   Unless a furnace is operating at it design max, it will always be oversized for the load.  (Full…"
Dec 24, 2014
Steven Lewis replied to George Kopf's discussion Extremely long wait for hot water
"There is a pump kit that will install under a sink or in a bathroom.  This pump will be activated by a button and it pumps the (colder) water in the Hot water pipe into the cold water pipe.  Once it senses heat it will shut off and then…"
Sep 18, 2014
Steven Lewis replied to Aaren Stewart's discussion Let's solve this HVAC quiz!!!
"answer ! - It is a dungeon Answer 2 - it has been placed on part time work so it has lost its incentive to excel. Answer 3 - There is no sound with out a receiver to hear it, there for YOU are weird for hearing it. Honestly,  These are problems…"
Sep 18, 2014
Steven Lewis replied to Christopher Talarico's discussion Heating with Tankless Water Heater & Hydronic Air Handler vs. Gas Furnace
"It looks better on paper than in real life applications.  Both Amana and Lennox came out with dual heat applicationa that would heat the home and hot water.  Eff ratings on the heating side were about 92-97% and the water heaters were in…"
Aug 31, 2014
Steven Lewis commented on Christopher Morin's blog post The Basics: Superheat
"Super heat readings without knowing airflow only gives you 1/2 the equation.  Dirty filters/ low airflow/refrigerant overcharge/low temp in building or low outdoor temp will all affect the superheat of the system.  If the superheat is out…"
Jan 16, 2014
Steven Lewis replied to Ernest V.F. Hodgson's discussion Combustion Furnace BTU output
"For propane, you can look at the burner orfice size.  there are charts that give the btu rating for the orfice size. then multiply by the numbers of burners.  will give approx output.  LP orfices are usually slightly smaller btu than…"
Dec 3, 2013
Steven Lewis replied to Andy Gostisha's discussion Disguising Ductless Heat Pump Units
"There are a number of options - one manufacturer 9LG ductless) makes a square wall unit that can have a picture/art in the front.    There are also heads that can be installed in a ceiling ( if you have enough space) so all you see is…"
Nov 22, 2013
Steven Lewis commented on Allison A. Bailes III's group HVAC
"I just go through the filter.  if it is not metal or electronic.  Leave the filter in place and poke a hole with your probe in a corner.  If you want to know the pressure drop across the filter place the probe just under the filter…"
Sep 26, 2013
Steven Lewis replied to James McGarvey's discussion Mini Split Heat Pumps
"How can you call it an American brand if it is made in Japan.  My experiance with the company is far from good.    cheap price isn't everything "
Sep 24, 2012
Steven Lewis replied to Patrick Michaelyan's discussion Installing additional supply runs from the main trunk.
"You need more information before you suggest what the appropriate answer to the customers problem would be.  Do loads on the house and each floor.  Loads tell you equipment sizing which tells you air flow requirements.  Now you have…"
Aug 2, 2012
Steven Lewis commented on Joseph Novella's blog post Conventional AC is not COOL
"GE and other heat pump water heaters will dehumidify the area they are located in and use the heat gathered to heat the water.  Bob, is right Trane VS systems have the capability to vary fan speed to the humidity and work very well in my…"
May 26, 2012
Steven Lewis commented on Joseph Novella's blog post Conventional AC is not COOL
"MIni splits work fine as spot cooling/heating and inverter tech is great but has a long way to go to meet loads in Kansas.  Even the manufacturers say their product in not designed to handle whole house loads or conditions.  (Meeting last…"
May 25, 2012

Profile Information

Company
Comfort Systems inc.
Professional Interests
HVAC - Energy

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At 2:46pm on December 6, 2010, Bruce Gold said…
I think they need a Comfort Systems inc. here in the Chicago area, But Steven, you have to run it. Tell me where I can vote on this?
 
 
 

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"Getting good use out of our sprayfoam truck! Brought the small cellulose machine and 15 bags for a…"
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Our Sprayfoam Truck looking its best...

I dream of a day where all sprayfoam trucks carry equipment like this!
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