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High Efficiency Furnace Venting: What You Need to Know

Mar 18, 2019 · These PVC pipes are connected to the furnace and expelled outside. This high efficiency venting system must be installed when you install the new furnace. The PVC pipes are used for air intake, exhaust gas, and to remove the corrosive condensation resulting from the combustion process. Other Aspects of High Efficiency Furnace Venting

Estimated Reading Time: 5 mins

Plastic Vent Pipes for High-Efficiency Condensing Furnaces

Oct 21, 2019 · Traditional gas-fired, forced-air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes, or chimneys. In contrast, modern high-efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials—such as PVC, CPVC, or ABS—for their exhaust vents. Some high-efficiency furnaces also include a plastic pipe for intake area, and all …

Estimated Reading Time: 5 mins

A Visual Guide to a High-Efficiency Condensing Furnaces

May 18, 2020 · How a High-Efficiency Condensing Furnace Differs . While the condensing furnace is different in its design and repair needs, it does have some similarities to a conventional furnace.Like a conventional furnace, it takes in cold air from the house and runs it through an air filter; it moves the air with a circulating fan; and it has a gas burner with electronic ignition (although condensing ...

Estimated Reading Time: 6 mins

ENERGY STAR Most Efficient 2021 — Furnaces | Products ...

The Daikin DM97MC and DC97MC are high-efficiency modulating furnaces with a variable-speed airflow system, and can reach up to 98% AFUE heating performance. Controller: New, digitally programmable thermostats, such as a ComfortNet TM Thermostat, feature both comfort and efficiency-enhancing functionality with their smart technology and remote access.


A high-efficiency or “condensing” furnace can significantly reduce energy consumption in a typical home; however, without a quality installation, the furnace may never deliver its expected energy . savings. Energy Star® has found that new furnaces often do not perform to their rated efficiency with

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Measure Guideline: High-Efficiency Natural Gas Furnaces

upgrading the heating and cooling system to higher efficiency equipment. For homes with gas-fired warm air furnaces, this could mean replacing an existing 70% to 80% Annual Fuel Utilization Efficiency (AFUE) furnace with a high efficiency furnace in the 90% to 98% AFUE range.

Guide to Compressed Air Piping Systems | Quincy Compressor

May 15, 2020 · Posted on: May 15, 2020 Owners of compressed air piping systems tend to focus on the compressor and think of the piping as less of a concern. However, just as hearts can fail due to clogged arteries, compressors can fail due to poor piping. And even if it doesn’t fail outright, power lost to faulty or inefficient pipes can cut into your profits.


DESIGN COEFFICIENT TABLES Hazen-Williams Friction Factor (C) Pipe Material Values for C Range High/Low Average Value Typical Design Value Plastic, PVC, Polyethylene pipe or tubing 160/150 150-155 150 Cement or mastic lined iron or steel pipe 160/130 148 140 Copper, brass, lead, tin or glass pipe or tubing 150/120 140 130

High efficiency machine Manufacturers & Suppliers, China ...

high efficiency machine manufacturer/supplier, China high efficiency machine manufacturer & factory list, find qualified Chinese high efficiency machine manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.

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Venting for High efficiency Gas Furnaces - Part 1 ...

Jan 21, 2017 · Venting for high-efficiency gas furnaces – Materials. Due to the condensing nature of a high-efficiency furnace, its venting must be made of a material that is resistant to corrosion. In a great majority of cases, plastic piping is used to vent high-efficiency equipment. It …

10 Wind Turbines That Push the Limits of Design

Dec 18, 2009 · Here are 10 wind turbine designs that push the limits of the current design and may help the U.S. get back to being an A student by 2030. By Lisa Merolla Dec 18, 2009

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The 787 is an all-new design with no legacy constraints, and it achieves many firsts in commercial aviation. The 787 makes the best use of available new technologies. Materials, aerodynamics, systems, and engines have been chosen and designed with the overall, integrated design at the forefront.


home, trailer or recreational vehicle. It is not design certified for these installations. This fu rnace is suitable for the final s ite. Rule 3. Air for combustion must not come from a corrosive or contaminated atmosphere. Make sure all combustion and ventilation air requirements are adhered to in addition to local codes and ordinances. Rule 4.

Common Problems with Low Flow Toilets | Networx

Newer toilets are becoming ever more efficient and water-wise. Through innovative designs and pressure-assistance devices, the new toilets are able to clear the bowl, but send even less water down the pipes. High-efficiency toilets can be tough on older plumbing systems.

exhaust vent run for 95% furnace - Fine Homebuilding

Oct 28, 2008 · And then you launched into a tirade about length being more critical for higher efficiencies, not having the foggiest how a high-efficiency furnace works.The basic design of high-efficiency gas forced-air furnaces has been the same for the past 25 years or so -- they're all basically the same, with one or two minor variations.

High Efficiency Furnaces; Should you Two pipe vent or One ...

Mar 04, 2020 · A more efficient home. When using a two pipe system the air used to burn is free, on a single pipe system you are using air from the interior of the home and it must be replaced by air entering the home (air exchange) through cracks, windows and doors etc, this is cooler often low humidity untreated air that now needs to be warmed up.

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High Efficiency Furnaces - HVAC DESIGN, air conditioning ...

High Efficiency Furnaces. Once we reach 90% AFUE or better, venting and combustion processes change a bit. These high efficiency furnaces are direct-vent appliances, which means that both exhaust and intake air (combustion air) are piped directly to the outside. No indoor combustion air is utilized.

Flue Design Is Critical For Furnace Installations

Nov 20, 2001 · In my recent article, “Hidden Problems Can Cause Carbon Monoxide”(The News, October 10, page 10), I discussed, among other things, the combustion air system.This system is made up of the venting to the furnace enclosure, which allows fresh air to be drawn from the outside of the structure to the inlet of the heat exchanger; the heat exchanger itself; and the flue system, which allows the ...

Install a Vent Flue for a 95% Efficient Condensing Gas ...

Dec 27, 2013 · You want your turns to be as wide as possible. If air hits a wall, it swirls around and causes turbulence. A 90 degree elbow in a vent causes the air to swirl around before it continues down the pipe. Since your gas furnace is burning air, it needs a constant, uninterupted supply in order to function properly.

Connecting New Boilers to Old Pipes - Heating Help

Aug 13, 2015 · Most new high-efficiency boilers require direct venting of the combustion air from the outside. If the boiler room has an air conditioner in it, the International Mechanical Code requires either a refrigerant monitoring system or direct piping of the combustion air from the outside to the burner for the fuel burning appliances in the boiler room.

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Furnace Exhaust in a Chimney? Read This | PV Heating & Air

Two Different Chimneys. Two Different Scenarios.

Boilers | Residential | Navien Inc.

NHB and New NFB-H Series high efficiency condensing boilers for residential applications. All Navien NHB and new NFB-H boilers have Navien’s advanced burner system. The industry’s largest turn down ratio means easier installation with multiple zones while maintaining high operational efficiencies.


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RapidAir Official Site | Premium Compressed Air Piping

RapidAir products deliver safe compressed air. Plus, OSHA has banned the use of PVC piping for compressed air in above-ground applications. Cleaner than Black Iron Pipe: Black iron pipe creates rust, silt, and sediment, which can ruin your equipment. Protect your investment with our plastic tubing or aluminum pipes that always deliver clean air.

The Best Piping System for Your Compressed Air System

Feb 01, 2017 · The reason OSHA does not allow PVC or CPV in compressed air piping is that these plastics are not strong enough to withstand high-pressure applications such as compressed air distribution. In addition, these plastics will degrade when they come in contact with oils and lubricants from the air compressor, leading to fractures and splintering.

The Best Air Compressor Pipe for Your Air Compressor ...

Oct 08, 2020 · PVC Pipe. Not Recommended. The use of PVC pipe is common but not recommended for use with compressed air. The biggest reason is because it is against OSHA Regulations to utilize PVC and plastic pipes in the United States for compressed air usage. It is, however, often used because it is readily available, inexpensive, and easy to install.

Boilers | Residential | Navien Inc.

NHB and New NFB-H Series high efficiency condensing boilers for residential applications. All Navien NHB and new NFB-H boilers have Navien’s advanced burner system. The industry’s largest turn down ratio means easier installation with multiple zones while maintaining high operational efficiencies.

The Sad Joke of Higher Furnace Efficiency Standards ...

Mar 20, 2015 · I agree that new construction needs a mandate to high efficiency furnaces but we should have a “water heater / automobile” style efficiency disclosure for retrofits. Zone 2 does benefit from natural gas since it is almost free down here because of much higher delta T’s over heat pumps and the occasional cold periods with moisture and wind.

Furnace intake and exhaust pvc - HVAC-Talk: Heating, Air ...

Mar 21, 2008 · My Carrier furnace has two pvc pipes that go through the basement wall and up the side of the house. At the top of the pvc pipe the intake has one 90 degree fitting so the opening is pointed straight out to the side of the vertical pipe. The exhaust pipe has two 90 degree fittings at the top of the pipe, which gives a 180 degree turn and the exhaust opening is pointed straight down.

ASK THE INSPECTOR: Furnace new, but outside-air intake ...

Feb 05, 2011 · Bringing in fresh air for the entire house through the return-air ducting on the furnace may help prevent a common problem when people upgrade their old heating appliances to high-efficiency units. Higher indoor relative humidity and window condensation often increase after upgrades to furnaces and installation of new windows.

Where should I drain condensate from a high-efficiency ...

Jul 03, 2018 · So I am guessing they must be other high-efficiency furnaces and I am guessing the small pipes are the condensate drains. In a couple cases, it looks like there is a separate 1/2 or 3/4 PVC pipe coming out of the wall. In another, it looks like there …

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A Hydrogen Generator You Can Build

Sep 14, 2019 · updated 2019-09-14 . Build Your Own Hydrogen Generator Run Your Car On Tap Water Free! Run Your Car on Hydrogen, Free . overview: A bottle, under the hood, containing electrodes (about 1.5 mm [1/16th inch] apart), is (almost) filled with water.

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Build an Earth-Sheltered, Energy-Efficient Greenhouse

Jan 19, 2018 · The author waters a vegetable crops in his sunniest earth-sheltered, energy-efficient greenhouse in November. Photo by Mike Oehler To water or weed the plants, I …

Window Types and Technologies | Department of Energy

Improving the thermal resistance of the frame can contribute to a window's overall energy efficiency, particularly its U-factor.There are advantages and disadvantages to all types of frame materials, but vinyl, wood, fiberglass, and some composite frame materials provide greater thermal resistance than metal.

The Best Replacement Windows & Reviews [2021 Update]

Jun 04, 2021 · High numbers (the higher the number, the more natural light is let in). Air Leakage: Measures how much outside air will enter a room through a product. ≤ 0.3: Low numbers (the lower the number, the fewer drafts experienced). Condensation Resistance* Measures how well a product resists the formation of condensation on the inside surface. 1-100

Condensate Drainage in a High Efficiency Gas Furnace ...

Mar 08, 2019 · The condensate trap is absolutely mandatory for a high-efficiency gas furnace. Since the drain taps into the exhaust system, leaving it open to the air would allow for a potential exhaust/flue gas leak in the living space, which is a big no-no. Additionally, the inducer motor would suck air through the drain if it weren’t trapped, which could ...

Furnaces and Boilers | Department of Energy

Energy efficiency upgrades and a new high-efficiency heating system can often cut your fuel bills and your furnace's pollution output in half. Upgrading your furnace or boiler from 56% to 90% efficiency in an average cold-climate house will save 1.5 tons of carbon dioxide emissions each year if you heat with gas, or 2.5 tons if you heat with oil.

Can you install a high-efficiency furnace with only one ...

Feb 27, 2018 · High-efficiency furnaces come with two pipes; one pipe brings combustion air directly into the furnace and mixes it with fuel. The other pipe exhausts the combustion gases directly to the outdoors. Both of these pipes are directed to the outdoors at …

Energy Efficient Window FAQs | HGTV

A. R-value is often citied in insulation literature, and U-value appears in published material on windows. Essentially R-value and U-value are two sides of the same coin. The term R-value is usually cited when discussing things as wall and ceiling insulation value, but it does not translate well to windows and other fenestration products, so the industry uses the term U-values instead.

Make Sure Your New High-Efficiency Furnace Condensate …

Dec 11, 2015 · High-Efficiency Furnaces Produce Lots of Condensation. High-efficiency furnaces produce lots of condensation, because condensation is created during the heating process and high-efficiency furnaces are extremely good at heating. In furnaces, heat is transferred from an exhaust product to the air (which is then directed to rooms).

How to Replace Your Own Furnace - Mr. Money Mustache

Nov 23, 2015 · From bottom to top, notice the custom return plenum, furnace, existing A/C box, PVC combustion air piping, and my homemade supply plenum that funnels the air to the ... High efficiency furnaces are usually vented with plastic or stainless, horizontally to the outside, and this may be difficult in some houses, requiring the creation of chases or ...

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Windows, Glass, Ratings, and Installation ...

Jul 10, 2015 · High-performance windows exceed Energy Star. Builders of energy-efficient homes should look for lower U-factors than Energy Star maximum values, ideally in the teens or twenties. Increasingly, designers of cold-climate homes are improving window U-factors by switching from double glazing to triple glazing. Different windows for different walls

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The Great 80% Vs. 95% Furnace Showdown | PV Heating & Air

A standard efficiency furnace provides 80% annual fuel utilization efficiency (AFUE). In this type of furnace, 20% of the energy produced by natural gas is expelled as exhaust. High efficiency furnaces offer 90% or more AFUE. These days, 95% AFUE is a common rating among new gas-powered furnaces. So a 95% furnace is more efficient than an 80% ...

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Furnace Exhaust Vent Ice Accumulation Causes and Remedies

Intake and exhaust vents for high efficiency furnaces must be high enough off of the ground to avoid any restrictions or being too close to snow that may melt and form an ice blockage. Because intake vents pull in outdoor air, an inadequate intake vent height may also allow the vent to pull in snow where it then melts and freezes.

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