Dara Bowser
  • Brantford, Ontario
  • Canada
Share on Facebook Share
 

Dara Bowser's Page

Latest Activity

Dara Bowser replied to Don Fugler's discussion Depressurization/make-up air issues in the group Kitchen Ventilation
"Hi Tom We did some field work "in the day" on threshold effects (5 pa & 10pa) of exhaust rates and correlating those with ACPH50 values. The results of that work is now used in the HRAI Ventilation Manual as a predictive allowable…"
Mar 26
Dara Bowser replied to Don Fugler's discussion Depressurization/make-up air issues in the group Kitchen Ventilation
"It is a complex issue with many factors including the house and flue configuration, relative air-tightness floor to floor., presence of a flue-damper etc etc. I am not aware of where this is written up (Don Fugler may know). This is from personal…"
Mar 26
Dara Bowser replied to Don Fugler's discussion Depressurization/make-up air issues in the group Kitchen Ventilation
"@Brennan: With respect to your point about combustion back-draft, in cold weather, a depressurization event especially without combustion appliance operation can result in semi-permanent flue reversal. That is when the flue is cooled below house…"
Mar 26
Dara Bowser replied to Don Fugler's discussion Depressurization/make-up air issues in the group Kitchen Ventilation
"I agree. For modest homes a specialist is not likely to be engaged unless the Building Official flags it during construction. If it is done after the fact (conversion from wood to gas) then the only knowledgeable person who could stop it would be…"
Jan 13
Dara Bowser replied to Don Fugler's discussion Depressurization/make-up air issues in the group Kitchen Ventilation
"I agree that is a gap in combustion appliance certification testing. There is a logical disconnect between combustion appliance standards and ventilation/depressurization standards. Being the first on the block combustion appliance producers have…"
Dec 30, 2018
Dara Bowser replied to Don Fugler's discussion Depressurization/make-up air issues in the group Kitchen Ventilation
"Hi Don. Yes, we are still doing depressurization testing. We use the CSA F326 test criteria. Now-a-days (as opposed to the '80's), new homes do not have spillage susceptible combustion appliances so we apply the 50 pa limit. As larger…"
Dec 28, 2018
Dara Bowser replied to Paul Raymer's discussion Stud cavity air returns
"In Canada, return air in stud cavities is the normal practice, as are "lined" joist bays which serve as return air routes. There are some practices which have to be respected. But if the supply & return air system is completely within…"
Aug 27, 2018
Dara Bowser liked Don Fugler's discussion Choosing a range hood
May 26, 2018
Dara Bowser replied to Don Fugler's discussion joining ducts in the group HVAC
"That would be in the SMACNA installation standards, but I will not be in the office until Monday & I do not have an E-copy that I can access."
Nov 28, 2017
Dara Bowser replied to Don Fugler's discussion joining ducts in the group HVAC
"The best connector would be what is called generically a "Draw-Band". The Hart & Cooley Catalogue call theirs the "QC" and it is shown on page 12 of their accessory catalogue (attached). Fantech also has these. These are…"
Nov 26, 2017
Dara Bowser replied to Don Fugler's discussion joining ducts in the group HVAC
"See my reply to Don Fugler earlier. Dryer ducts can usually be cleaned effectivly with a shop-vac and the right connector. The difficulty is getting access to the duct. This is why we recommend this product…"
Nov 26, 2017
Dara Bowser replied to Don Fugler's discussion joining ducts in the group HVAC
"Good to hear you have clean dryer ducts Don. The dryer duct issues that we run into are predominantly upper story dryers that are vented out through the roof. Installers use a roof-cap with a screen and the lint packs up inside the screen. This can…"
Nov 19, 2017
Dara Bowser replied to Don Fugler's discussion joining ducts in the group HVAC
"Hi Don. We have never considered screws as impeding airflow, but I can see how in some ducts (e.g. dryer exhaust) they would catch lint etc. We always look for am minimum of two screws per joint in round duct. In cases where there are high solids…"
Nov 18, 2017
Diane Chojnowski left a comment for Dara Bowser
"Hi Dara, 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…"
Oct 3, 2017
Dara Bowser joined Sean Lintow Sr's group
Thumbnail

Best Practices (Residential)

Best Building, Retrofitting, or even Auditing Practices - what are they, what should change, what needs to find it's way to the dust bin of history?See More
Oct 1, 2017
Dara Bowser joined Diane Chojnowski's group
Thumbnail

Facebook Pages

Does your company or organization have a Facebook Page?This group is for pros who have facebook pages. Post the link to your facebook page in the comments so that folks can like you on facebook.See More
Oct 1, 2017

Profile Information

Company
Bowser Technical Inc
Role in Home Performance Marketplace
Architect / designer, Building energy modeler, Educator / Trainer, Energy auditor / assessor / analyst, Engineer, Researcher (Lab. academia. etc.)
Professional Certification
Other
Professional Interests
HVAC, Ductwork, ventilation, hydronics, heat pumps, net zero, Solar PV, Energy Storage, Indenpendent Power, Co-Generation, Quality Assurance, Commissioning, Testing
Website URL
http://www.bowsertech.com
Twitter ID
darabowser
Facebook Page
BowserTech
LinkedIn Profile
darabowser

Comment Wall (1 comment)

You need to be a member of Home Energy Pros Forum to add comments!

Join Home Energy Pros Forum

At 8:15am on October 3, 2017, Diane Chojnowski said…

Hi Dara,

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 Moderator

 
 
 

Forum Discussions

Water heater ventilation question

Started by Luis Hernandez in General Forum. Last reply by Luis Hernandez 4 minutes ago. 1 Reply

Exterior green cladding

Started by Luis Hernandez in General Forum. Last reply by Dennis Heidner 19 hours ago. 3 Replies

Faces & Places of HPC19

Started by Diane Chojnowski in General Forum Apr 5. 0 Replies

high rise humidity

Started by Steve Nations in HVAC. Last reply by Dennis Heidner Apr 3. 7 Replies

Follow the action at #HPC19

Started by Diane Chojnowski in General Forum Apr 2. 0 Replies

Unvented Roof Assembly

Started by Patrick Michaelyan in General Forum. Last reply by Wallacebastien Mar 30. 6 Replies

Technology and Customer Service

Started by Kelly Caplenas in General Forum. Last reply by Franco Oyuela Mar 25. 1 Reply

Latest Activity

Luis Hernandez replied to Luis Hernandez's discussion Water heater ventilation question
"After further research, it turns out this is a combi single wall heat exchanger, power vent (funny…"
4 minutes ago
Luis Hernandez posted a discussion

Water heater ventilation question

Hello everyone,    I encountered a propane water heater with an assistance fan right on top of the…See More
50 minutes ago
Dennis Heidner replied to Luis Hernandez's discussion Exterior green cladding
"For cedar plank siding,  if you want to remove and reuse,  use a punch to push the nails…"
19 hours ago
Robert Logston replied to Robert Logston's discussion Mini-Crawl Spaces between City Row-Home's Conditioned Stories
"Thanx for the new word Sean, being "interstitial" space!, for I didn't think mini…"
19 hours ago
Luis Hernandez replied to Luis Hernandez's discussion Exterior green cladding
"Color is not the issue, they are cracking and coming off onto pieces on their own, so when I try to…"
yesterday
Pearl Certification's blog post was featured

Home Value Hot Potato – Whose Problem is It?

Are you a home seller, real estate agent, broker, builder, home improvement contractor, appraiser,…See More
yesterday
Ecohouse Solutions posted a video

Air Source Heat Pump, Heat Exchanger System for Low Cost Central Heating, Commercial and Domestic Hot Water Heater: Eco House Solutions, UK

Using our heat exchangers we can save 60-90% of your heating and hot water bills We supply heat exchangers for central heating, hot water, swimming pools, hot tubs, jacuzzis and dairy farms Unlike other systems this means NO extra electricity costs,…
yesterday
Profile Iconbtengie and Anna Stern joined Home Energy Pros Forum
yesterday

© 2019   Created by Home Performance Coalition (HPC)   Powered by

Badges  |  Report an Issue  |  Terms of Service