Zan S asked:


i’m graduating this year 2009 and i want to do HVAC
where should i start off at?

Monorail Track Lighting

jewols asked:


A seven-storey office building is to have a variable air volume system. The building will have 10500 sq. meters of net space and an estimated 12600 sq.m of gross area. About how much space should be allowed for HVAC systems?

Painted Kitchen Cabinets

DrZarkloff asked:

My Freon video raised some questions, so I made this video to clarify what I was talking about.

Airless Paint Sprayer

Pete asked:


I am well aware that the fan on my HVAC system can run constantly if I set the switch from Auto to ON. What do you have your switch set to, and why? How much electricity does a typical HVAC system use, when only the fan is running? Is it cost effective to run this fan constantly during the summer months where I live (gets over 100 degrees here). Or is it more cost effective to just let the A/C cycle on and off?

Can Vending Machines

fat_equals_flavor asked:


I recently bought a 3150 sq ft house, it was a short sale, so the previous owners took the air conditioner with them. Everything is set up (ducts, etc.) and the FAU is in the attic. So, since everything is in place, a new condensor would just have to be placed outside and hooked up, correct? The house is only 4 years old. Do I need a 5 ton and how much should I pay to have installed?

Outdoor Solar Lighting

cj4mayor2006 asked:


I’m moving from NY to AZ and needed to know about this subject. I have worked in a high rise building in NYC for three years and I have my New York CFC license. Will a license or experience help me? I’m only 26, love the industry,and can’t wait to get there to start work.

Coffee Vending Machines

DrZarkloff asked:

This is the first video about HVAC controls.

Flex Track Lighting

Ryan asked:


I paid close to $6000 to a local HVAC co to have a new unit installed on my roof. It’s been 2 years and the heater will not turn on. The A/C is the only thing that works.

The HVAC co is telling me there is only a 1 year warranty on parts and labor.

Is this typical?

Coffee Vending Machines

DrZarkloff asked:

I demonstrate how to clean the blower wheel. Their seems to be an issue with Windows Movie Makers speed effects. That’s why it slowed way down in a spot. I had rendered this video four times trying to correct the problem by fooling Windows Movie Maker to compensate for the issue. I was partially successful.

Brass Plumbing Fittings

ptrar asked:


I want to begin a career in the HVAC field, and will be starting school next week to become certified. To become certified it will only take a year, but most companies I saw expect two years of exp. What’s the short and easy route to at least getting my foot in the door. Is Internship possible?

Is A Vending Business Right For You?