Roman
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Range Hood Draft

Started this discussion. Last reply by Roman Oct 18, 2013. 22 Replies

Recently we purchase a combination Samsung microwave / range hood. The venting system is 4-speed using 2 backward impeller fans. I measured the exhaust flow at the highest speed on the output to be…Continue

 

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Juan Jose Palacios replied to Roman's discussion Model 3 Blower - Sensor Leaking in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Hello Roman, According to your picture that sensor is about 20 years old.  We would like to replace that with a new one. Please give us a call. 612-827-1117 The Energy Conservatory Juan"
Dec 8, 2015
Roman added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
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Model 3 Blower - Sensor Leaking

Thought I would throw this one out in the event someone has come across this problem before.My model 3 Minneapolis Blower has a white plastic flow sensor mounted on the motor. The sensor leaks at the entry of the metal hose nipple into the white plastic housing. See photo.Does anyone know of a reliable repair method for this connection?  It looks like the tubing is integrated into the hole of the plastic housing along with the metal nipple. Thanks for readingRoman See More
Nov 19, 2015
Roman added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
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FOR SALE: RESIDENTIAL | ENERGY | EFFECIENCY | TEXTBOOK | KRIGGER | 6TH EDITION

The bible on how to reduce energy costs, affect HVAC repairs and improve comfort in residential dwellings.Easy to use Equations and all! Most recent edition 2013, by Krigger and DorsiExcellent condition $60, text or cell 647-833-2010See More
Nov 13, 2015
Roman added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
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BOOK FOR SALE | RESIDENTIAL ENERGY EFFICIENCY | KRIGGER | 6TH EDITION

The bible on how to reduce energy costs, HVAC repairs and improve comfort in your dwelling.Easy to use Equations and all! Most recent edition 2013, by Krigger and DorsiExcellent condition, $45.See More
Oct 8, 2015
Roman posted a blog post

DM4 Digital Micro-Manometer

I am considering buying this unit. Does anyone have any experience with the DM4 Micro-manometer? Is this a dependable instrument? Any strengths or shortcomings? Many thx for yor help, RomanSee More
Jan 20, 2015
Roman replied to GEORGE LEVOSINSKI's discussion Good Deals, 66% off Price New in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"George Can not find your info on craigs list. Can you provide contact info...i am interested in the DG700 Roman"
Dec 2, 2014
Roman added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
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Ventilating Blower Hi-Power - Variable Speed For Sale

Centrifugal - NEW Variable speed - Very quiet1140 CFM Free air, up to 1000 CFM flow @ 50 PaBase blower Vortex VTX1200Good for duct testing, pressurizing or depressurizing.Can also be used for ventillating, drying, dust removal,125V AC, with safety grill and stable stand.12-in inlet with 10-in removable inlet reducer,25 ft flex ducting and speed controller also available.Asking $300.Thx for lookingSee More
Aug 17, 2014
Roman added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
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Tramex RWS Roof and Wall Moisture Scanner

This is a professional meter for non-destructive surveys.  Original owner purchased 2012; very gently used, near perfect condition. Comes with heavy duty padded carrying case and 3 ft aluminum extension pole and manual. A check on EBAY seems to indicate $900 is a fair asking price. Thanks for looking.See More
Aug 14, 2014
Roman joined allen p tanner's group
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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment you have to sell, trade or wish to purchase.Please post the equipment age, serial numbers, condition, warranties and asking price.See More
Aug 14, 2014
Roman replied to Roman's discussion Range Hood Draft
"Hi Paul and Chris   I appreciate your helpfull suggestions regarding different airflow measuring techniques.   I chose the anemometer approach due to its simplicity as well as being able to easily average 9 readings over the scanned…"
Oct 18, 2013
Chris Stratton replied to Roman's discussion Range Hood Draft
"I second Paul's suggestion to use a duct tester and a cardboard box to measure the range hood flow.   It sounds like there are multiple inlets on this model, though.  So you have to be sure that the box captures all of them.…"
Oct 18, 2013
Paul Raymer replied to Roman's discussion Range Hood Draft
"A duct tester can be used to test a range hood pretty effectively if you can create a box to go under the whole assembly.  The duct tester works as a powered flow hood so the air going through the fan in the hood should equal the air going…"
Oct 18, 2013
Dale Sherman replied to Roman's discussion Range Hood Draft
"Home Energy Magazin has a picture of how to use a box to measure flow at a range hood from an August 2012 article. You can use the Energy Conservatory Flow Meter, or make a similar box and cut a hole.  Simply poke a hole for a manometer…"
Oct 16, 2013
Roman replied to Roman's discussion Range Hood Draft
"We have measured the airflow with a cardboard tunnel and anemometer. Can you provide a sketch of your method and we will try it.  There is some confusion where you are suggesting in placing the manometer probe in relation to the 5 x 5 orifice…"
Oct 15, 2013
Dale@EnergyWright replied to Roman's discussion Range Hood Draft
"There are several factors affecting the effectiveness of range hoods, height, length and width, and CFM. A fairly accurate way to measure the CFM flow is tape a corrugated cardboard box across the range hood to completely seal it off, then cut a…"
Oct 15, 2013
Tom DelConte replied to Roman's discussion Range Hood Draft
"Hello Eric, Great question! You have run into the dilemma of installing a microwave / range hood! None of them pull enough air(as you said, 100 cfm), as tested by the only trusted authority on appliances and home energy, Consumer Reports. If…"
Oct 8, 2013

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Outer Limit Research Inc
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Building energy modeler, Energy auditor / assessor / analyst, Energy efficiency / Weatherization program administrator or implementer / evaluator, Other
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Other
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Thermal comfort
Indoor air quality (radon. mould, TVOC's etc)
Moisture intrusion
Building diagnostics
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Roman's Blog

DM4 Digital Micro-Manometer

Posted on January 20, 2015 at 1:00am 0 Comments

I am considering buying this unit. Does anyone have any experience with the DM4 Micro-manometer? Is this a dependable instrument? Any strengths or shortcomings?

 

Many thx for yor help, Roman

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At 6:25am on June 10, 2013, Diane Chojnowski said…

Welcome to Home Energy Pros! 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!

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