" Indoor air quality and proper ventilation are important issues for homeowners today as homes can be more energy efficient, they also can be more [unk] so it's important to provide plumbing a fresh air for proper ventilation. In an energy wise home, we're using this heat exchanger. It's an air-to-air heat exchanger, and here to explain to us how it works is Scott Harrison from [unk]. Scott, tell us about your product."

" Okay. This is like you said, it's a [unk] Ultimate Heat Exchanger, and ideally how it works is you have a duct right here that gets stuck into the outside, and this 1 comes from the inside of the house. We're bringing fresh air into the house, and on the inside of the unit, it passes through an aluminum heat exchange core, which is inside, which is the heart of the system. This is where the 2 airstreams will pass by each other without mixing, and then the cold air from outside goes through this way. The arm air coming from the house which will leave from the bathrooms and the kitchen will come back through this way. The heat is transferred over to the colder air coming in, and there you go. That's where you get your heat transfer happening."

" Now, I noticed this is metal into the plastic."

" Yup, this is an aluminum and the tins on the inside are about 1/10 the thickness of a diamond. That's where you get your quickie transfer happening."

" And since aluminum conducts energy a thousand times faster than plastic, you wanna make sure you buy a unit that's got a metal heat exchange core."

" That's right."

" Yeah, so the concept is basically you got, you know, fresh air from the outside coming in, and then you've got the stellar going out. You exchange the heat. You recover the heat."

" What's the percentage of efficiency you get out here?"

" On this model, you're looking at at least 70% heat recovery."

" Okay. And is it noisy?"

" No, it's not noisy at all. The door is extremely insulated. Once the door goes back on the motor is very quite. It has the 5 speed control mechanism. You can run it on a continuous low speed, number 1 and number 2. You don't need a lot of ventilation in the house. You need an air exchange happening going on."

" Okay. And in terms of control, I noticed that it also has a dehumidistat."

" Yup, there's an internal dehumidistat, which will allow to measure the humidity of the air coming back. Let's say someone is having a shower and it got a lot of moisture in the bathroom. The air coming back exhausted from the bathroom, this will pick up on the dehumidistat, and as the HRV or the air exchanger is running in a low speed, this will boost it to high speed and allow the quickness to ventilate that moist there."

" What is the cost to operate this?"

" Oh, you're looking at probably around $60, $70 a year."

" Thoroughly inexpensive. What is the cost for buying one of these?"

" I think you're looking, we used to look at, talked to a contractor about the actual installed car. The average cost of the unit can be, depending on the size of the home, is maybe $1000 to $1400."

" Okay. So recent it should be a reasonable cost. What about maintenance?"

" Maintenance is very simple. The homeowner can slide the aluminum core out. They can take it out to the driveway, hose it down with a garden hose, shake the excess water out, slide it right back in. they just have to make sure that they put it in with the arrow going up so you'd get the drainage going down into the bottom. They wipe down the drains raised right here, and we've got these foam filters that help protect the core from any kind of buttons or anything that gets in, and there's no maintenance on the motor because it's a field bulb bearing motor so they don't have to worry about that."

" Okay. Now, indoor quality obviously has to deal with not only the efficiency of the air coming through, but also the particulars in the, now you have a filtration system that's kind of unique?"

" That's correct. What we have here is a filtration system called a turbulence slow precipitator."

" And what does that mean?"

" Now that's a funny name, but turbulence flow is basically the way the air moves and precipitation is to remove. So if you can picture air in a tube blowing down a 6-inch round duct, and as the air goes down the duct, it turbulates. Air never flows smoothly. So as it particularly gets flung out of the air it gets caught on the side of the pipe, and then lo and behold as you go down further down the pipe the air is much cleaner. We've taken that same concept, that same principle, and put it inside our TFP collector. The air is going Inside, it's turbulating, and the particular is getting thrown and getting caught, and are collected on the inside."

" How much of this part of the filter to take out?"

" At this point, you're looking at about 95% around the 5 micron range."

" A micron is a millions of a meter. The human hair is roughly 30 to 40 microns so that's smaller than what the human eye can even see."

" Yeah, we're talking about that small dust that floats in the living room when the sun is coming in the window and you can see all that stuff floating in the air. That's the stuff that we can take out. And we've boost it with a HEPA filter so now we can get right down to 0.3 of a micron that were 99.97% removed alone."

" We're taking just about everything out here, the mole spores, any types of most dust, smoke, that type of thing?"

" Allergens, anybody with respiratory problems, allergies, anything like that."

" Now, what does this cost to operate? Is it, it looks like it's got a fairly small motor here?"

" It's got a very small motor. It's less than 1 amp so you're not looking at very much power consumption at all, and it is designed to run continuous so you're always filtering the air. We're not saying that you're gonna take all the particular out of the house because you're always opening doors and windows, and your clothes are always carrying."

" Uh hmm."

" You may have carpet so you're always----"

" Sure."

" introducing new particular into the house, but this is definitely an excellent way of controlling it."

" And what does a unit like this cost?"

" Oh, you're looking about maybe $700, $800, and then you might have a little bit, have it installed if you want to put it into a tract system."

" What about maintenance? How often do I have to replace these?"

" I would say that the collector"

" To replace the TFP collector itself, you're looking at about roughly $60, $65 for that 10- to 12-month period, and the HEPA filter is roughly around $160 to $180, which is about every 3 years."

" Great. Well Scott, great information. Thanks for being here."

" My pleasure."