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EXTENDING CONDENSING

otherwise be lost in a conventional non-condensing boiler. Flue gas condensate forms along surfaces of the boiler heat exchanger the horizontal asymptote of the S-N curve. This property, among others, has helped make stainless A well-designed firetube condensing boiler includes proper support of variable primary flow systems, a type of

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Is a high efficiency, condensing gas boiler the best

Principals of Condensing Boiler System Design

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Residential Boilers Archives | Velocity Boiler Works

The Phantom Series boiler is a stainless steel, water tube, high-efficiency, condensing, gas-fired, hot water boiler. There are multiple venting options to suit homeowner and installer preferences. The Phantom® is designed to be wall-mounted for when floor space is at a premium.

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Great Expectations: Condensing Boilers | Kefid

Jan 12, 2018 · A condensing boiler achieves superior efficiencies when compared to a traditional boiler by capturing latent heat from the boiler flue gasses. The process requires a return water temperature below the dew point of the flue gas (typically around 130°F) and a heat exchanger surface capable of withstanding the corrosive qualities of the flue gas

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How To Optimize Your Condensing Boiler System For Maximum

Condensing theory, How to maximise domestic condensing boiler efficiency. To maximise the efficiency of your domestic boiler is very simple, turn the flow temperature down. This doesn't mean that it releases less energy overall to heat the property, but rather can use less gas …

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Westinghouse High Mass Condensing Boiler

The super efficient High Mass Condensing Boiler is a versatile commercial boiler that can be used for radiant floors, fan coil, base boards, snow melt, domestic hot water and pool heating (both with indirect tanks - sold separately). With up to a 10:1 turndown ratio, the boiler's large water content heat exchanger allows for virtually no

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FOR UPFLOW, DOWNFLOW/HORIZONTAL HIGH EFFICIENCY …

FOR UPFLOW, DOWNFLOW/HORIZONTAL HIGH EFFICIENCY CONDENSING TWO-STAGE GAS FURNACES RGRM, RGTM SERIES ISO 9001:2008 U.L. recognized fuel gas and CO (carbon monoxide) detectors are recommended in all applications, and their installation should be in accordance with the manufacturer's recommendations and/or local laws, rules, regulations, or customs.

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Residential Gas Archives | Velocity Boiler Works

The stainless steel, gas-fired Raptor is our first fire tube design for natural or LP gas offering superior efficiency and performance with up to 96% AFUE. The boiler is available in five sizes – 85, 110, 155, 205, and 270 MBH. A 155-MBH combi model is also available featuring a thermostatic mixing valve and brazed plate heat exchanger.

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Back to Basics: Venting for Gas-Fired Boilers | Kefid

Jun 04, 2003 · All gas-fired, low pressure steam and hot water boilers certified to the ANSI Z21.13 standard are required to have the vent system category (I, II, III or IV) on the rating plate. The ANSI Z21.13 standard contains a uniform test procedure used to evaluate the vent system of all certified boilers. Vent category specifies whether the vent system

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Designing efficient, effective boilers - Specifying Engineer

Apr 14, 2014 · Condensing boilers are equipped with high-efficiency heat exchangers designed to extract the latent heat energy of water vapor at return water temperatures below 135 F normally lost in conventional boilers and sensible heat energy from flue gas temperature change, leading to efficiencies in the mid- to high-90th percentile.

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Gas Fired Boilers - Reliable Manufacturers? — Heating Help

Aug 12, 2007 · The contractors that have come in have estimated our current unit is at best 70% efficient, probably lower. We are still deciding between a "regular" 80% efficiency boiler and a high efficiency 90-95% boiler and have asked each contractor to estimate the job both ways. We expect to stay in this house at least 10 years.

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Modern HydronicSystem Designs for Condensing Boilers

Principals of Condensing Boiler System Design

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The Definitive Guide to Condensing Water Heaters or Boilers

To be able to condense the water vapour from the flue gas, the condensing boiler should operate using a lower entering water temperature than a conventional boiler. This is because the condensing process occurs at around 54°C. However, even when running at traditional, non-condensing temperatures of 80/60 a condensing boiler typically offers 4-5% better efficiency than a non-condensing boiler due to the superior heat exchanger and burner control in a condensing boiler.

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Can You Still Buy Non-Condensing Boilers? | Viessmann

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AM Series Boilers - AERCO

399, 500, 750, 1000 MBH. The AM Series of commercial condensing boilers are essentially pre-packaged boiler plants giving you the reliability and redundancy of a multi-unit system in a single unit. Each unit consists of between two and four individual modules, each with its own combustion chamber, burner, gas valve, and combustion controls and

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Boiler-Venting Considerations - Heating Help

Aug 13, 2015 · A chimney liner would most likely have to be installed here. You will need to have the price for that in your estimate or design. Without the chimney liner, the flue gases could condense, ruining the chimney. Horizontal vs. Vertical Another rule to remember is that the horizontal vents must be no more than 75% of the vertical height of the flue. If using B Vent, the horizontal length can be the same length as the height of the chimney, as per International Fuel Gas …

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Principals of Condensing Boiler System Design

Conversely the focus for condensing boiler system design is to return 80˚F (27˚C) water to the boilers to promote range to actually condense water out of the exiting flue gas. The onset of condensing is with an EWT of about 130˚F (54˚C), but maximum efficiency occurs at an EWT of 80˚F (27˚C) or lower. This EWT requirement varies with

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CONDENSING RESIDENTIAL GAS BOILERS - Lochinvar

The "lead" boiler modulates with demand to capacity. As demand increases, additional boilers fire and modulate to capacity. This continues, with additional boilers firing and modulating to capacity until all units are operating. Every 24 hours, the SMART SYSTEM automatically shifts the lead boiler role to the next in the sequence,

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Hydronic Air Handlers + Condensing Boilers = Greater

Feb 09, 2015 · The article below is a guest post from Roy Collver, President, OTBC Inc. Roy teaches Condensing Boilers in Hydronic Systems, a 6-week course where students optimize system designs and control strategies to take full advantage of the energy savings and comfort benefits boilers have to offer. Who Should Read This: Heating professionals; Radiant heating experts

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1 Simple Trick to Get the Most Of Your Condensing Boiler

Feb 08, 2016 · Most condensing boilers will operate in the 93% plus range if the system is running at 120°F supply 100°F return (the design parameters for many radiant floor heating systems). In between these two, the efficiency will be, well – in between. Variables include: the above-mentioned supply and return temperatures – cooler is better, fuel

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