Makeup Air & gas cooktop
D B
3 years ago
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fresh air exchange, makeup air, dehumid: erv, ua150h or combo?
Comments (3)We deal with dehumidification in tighly constructed homes in this manner..(note that my location is Louisiana) We blower door test home to determine if fresh air is necessary. In many cases it is not, it takes an effort to build to the standard that requires fresh air intake. La. mandates .35 air changes per hour (achN)Fla. mandates .25 achN..as a rule of thumb I add fresh air @ .3 achN. There have been a lot of misconceptions with erv's in my area, and cost and install are equal factors. A few years ago we started using this approach. 12'x12' filter back grill installed (depending on house) under rear porch, soffit..easily acessable area as you will be changing a filter @ this location. 4" duct from filter back grill to return side of hvac system. Barometric damper installed in 4" duct. In this install we are introducing fresh air, filtering it before it enters the return & controlling the air flow with the barometric damper. Once air enters the return it is clean, measured & dehumidified before entering the house. I found a site..years ago..www.skuttle.com/216html..don't know if it still works, but this is were I first learned about barometric dampers. The damper will adjust to the amount of air being drawn out of the house via bath fans, stove fan etc. If all fans are running the barometric damper will be opened more, and as each fan is turned off the damper will close a bit more. The idea is to keep a slight positive pressure on the home rather than a negative pressure. You don't have to add a great amount of fresh air..something like 10 cfm (cubic feet per minute) per person & combustable appliance (including fireplace inserts). Oh cost for install is about $500. materials included. Great performance in my area. For additional dehumdidfication...stand alone dehumidifiers in the conditioned space. We try to catch this in the planning stages to have permanant drains rather than having to empty the dehumidifier on a regular basis. One dehumidifier will cover about 2000 sq ft.cost is less than $200 @ HD & lowes. I would first determine if the RH was high enough to need the additional dehumidification. Radio Shack sells a Relative Humidity device that measures RH in your home for about 30 bucks. In my area 50% RH is the goal. Hope some of this helps you out in your situation. (oh and ok guys....y'all's input???)...See MoreQuiet hood for induction cooktop (and makeup air)
Comments (11)HVAC is OK if your furnace/air conditioning is powerful enough to heat/cool the number of pounds/minute of air you are going to be moving through the HVAC to the hood and thence back outside. This would be the level of designing the HVAC to work with some of the windows open, or to deal with a large house. If the furnace is not powerful enough, you can still use the HVAC to distribute the air. In that case just preheat the MUA part coming from outside. Cooling it might not be worth it. (For pounds/min divide the CFM by 12 to 13 depending on the altitude and temperature. For BTU/min/degree-F multiply this result by 0.24. Multiply by the desired change in temperature in degrees F. Multiply by 60 min/hr. The result is the BTU/hr that must be transferred to the air to heat it by the desired degrees Fahrenheit.) My oil burner is sufficient to heat the MUA through a heat exchanger (radiator), but during that period of high thermal transfer, heating demands from the rest of the house may not be answered, or only intermittently answered. kas...See MoreShopping for a 36" gas cooktop. Stuck btw Jenn-Air, Cafe, Bosch. Help!
Comments (3)I have the 30" version of the same Jenn-Air cooktop and I love it. It's my understanding the Jenn-Air downdrafts are a disaster tho so if that's what you are considering you may want to think again. About 6 months ago I purchased a full Jenn-Air kitchen suite and while there have been some hiccups their customer service has been spectacular. The last issue I had was with the new obsidian fridge having a hard time connecting to their app. It took a while to get sorted (it was an app issue, not my fridge) but ultimately it did about 6 weeks or so ago. The wild part though was I got a call from them last week, checking in, making sure it was still working A-OK. YMMV but I've had very good experience with them so far....See MoreCold air draft from fireplace and gas cooktop
Comments (0)Over the last couple of days of extreme cold, I noticed a constant cold air draft around the gas fireplace and beneath the gas cooktop in our house. From looking around online, this seems like a common problem, but I'm not sure if the fix is simple enough to be a DIY because we are working around gas lines. What kind of contractor do I hire to fix this?...See MoreD B
3 years agoD B
3 years agokaseki
3 years agoD B
3 years agoD B
3 years agokaseki
3 years agoD B
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3 years agoD B
3 years agoD B
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3 years agolast modified: 3 years agokaseki
3 years agolast modified: 3 years ago
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