Thursday, March 19, 2015

New Department of Energy Standards for Hot Water Heaters

Manufacturers have been required to comply with the Department of Energy (DOE) energy conservation standards for residential water heaters since 1990. Residential water heaters are products that utilize oil, gas, or electricity to heat potable water for use upon demand for activities such as washing dishes or clothes, or bathing. Residential water heaters include storage type units that store heated water in an insulated tank and instantaneous type units that heat water on demand.

The standard mandatory in 1990 will save approximately 3.2 quads of energy and result in approximately $34.8 billion in energy bill savings for products shipped from 1990-2019. The standard will avoid about 180 million metric tons of carbon dioxide emissions, equivalent to the annual greenhouse gas emissions of about 35.3 million automobiles.

The standard mandatory in 2004 will save approximately 6 quads of energy and result in approximately $70.6 billion in energy bill savings for products shipped from 2004-2033. The standard will avoid about 316.8 million metric tons of carbon dioxide emissions, equivalent to the annual greenhouse gas emissions of about 62.1 million automobiles.

Standards mandatory in 2015 will save approximately 3.3 quads of energy and result in approximately $63 billion in energy bill savings for products shipped from 2015-2044. The standard will avoid about 172.5 million metric tons of carbon dioxide emissions, equivalent to the annual greenhouse gas emissions of about 33.8 million automobiles.



Table I.2—Amended Federal Energy Conservation Standards for Residential Water Heaters Established by April 2010 Final Rule

Product class

Energy factor as of April 16, 2015

Gas-Fired Storage Water Heater

For tanks with a Rated Storage Volume at or below 55 gallons: EF = 0.675 − (0.0015 × Rated Storage Volume in gallons).

 

For tanks with a Rated Storage Volume above 55 gallons: EF = 0.8012 − (0.00078 × Rated Storage Volume in gallons).

Oil-Fired Storage Water Heater

EF = 0.68 − (0.0019 × Rated Storage Volume in gallons).

Electric Storage Water Heater

For tanks with a Rated Storage Volume at or below 55 gallons: EF = 0.960 − (0.0003 × Rated Storage Volume in gallons).

 

For tanks with a Rated Storage Volume above 55 gallons: EF = 2.057 − (0.00113 × Rated Storage Volume in gallons).

Tabletop Water Heater

EF = 0.93 − (0.00132 × Rated Storage Volume in gallons).

Gas-Fired Instantaneous Water Heater

EF = 0.82 − (0.0019 × Rated Storage Volume in gallons).

Instantaneous Electric Water Heater

EF = 0.93 − (0.00132 × Rated Storage Volume in gallons).

 What does all this mean...

If your current water heater is in a small utility closet or crawl space, you may need to find a new home for an updated model that requires more insulation and equipment.
“It’s going to be bigger. It’s going to be taller. It’s going to take up more room. A lot of water heaters are installed in a very tight quarters. So, all of these things could be a major impact if you are replacing a water heater after April in 2015”.
“So, if you go and buy a new water heater today, you might save a little bit more on the upfront costs and you’re again, going to get some energy efficiency out of it. But, come April there are going to be new models out and they’re probably going to be a little more costly but again, more energy efficient”.

If your current water heater is in a small utility closet or crawl space, you may need to find a new home for an updated model that requires more insulation and equipment.
“It’s going to be bigger. It’s going to be taller. It’s going to take up more room. A lot of water heaters are installed in a very tight quarters. So, all of these things could be a major impact if you are replacing a water heater after April in 2015".
“So, if you go and buy a new water heater today, you might save a little bit more on the upfront costs and you’re again, going to get some energy efficiency out of it. But, come April there are going to be new models out and they’re probably going to be a little more costly but again, more energy efficient".
 
It would be beneficial to consider buying an energy efficient on demand water heater. They are already smaller, provides endless hot water, and cost effective. Houseneeds sells electric, oil, propane and natural gas units to meet your needs. The gas units can be either condensing or non-condensing. Click on the link below to view selections...
 
 
 
 
 

Tuesday, March 3, 2015

Heat exchangers to meet your hot water and hydronic needs

Brazed Plate Heat Exchangers Single Walled - Water to Water = v7189
 

Single Walled Brazed Plate Heat Exchangers were developed years ago and they are now the most widely used device for isolating hydronic heating circuits. Single Walled Brazed Plate Heat Exchangers transfer heat from one liquid medium to another with no intermixing of the two fluids. Brazed Plate Heat Exchanger requires the fluid to be pumped into both sides of it at once. The brazed plate heat exchangers we sell can transfer up to 240,000 BTU’s per hour. The amount of heat transferred is dependent on the delta T (difference of temperature between the two fluids). It also depends on the amount of fluid moving through both sides of the heat exchanger. Brazed Flat Plate Heat Exchanger are required for all radiant heating systems where you mix heating water with domestic water.
Brazed Plate Heat Exchangers are produced with 10 to 50 flat plates, sizing is easy for your hydronic system or solar system. Well - not required everywhere. But, in most places it is and for places where you can mix heating and domestic water - you should never ever mix the two. Thus, use a Brazed Plate Heat Exchanger for all open loop heating systems!

Brazed Plate Heat Exchangers - Double Walled = v7178
Double Walled Brazed Plate Heat Exchangers transfers heat just like the single wall heat exchangers except with 2 walls. Required in some codes. Check with your local code to see if a double walled heat exchanger is required. Click here to see brochure.
 
OKO Single Walled Brazed Plate Heat Exchangers = v7184
 
 
OKO Brazed Plate Heat Exchangers are efficient, cost-effective solutions to your heating requirements. European-engineered and fabricated under a stringent quality program, these market-driven products provide consistent and reliable performance

Click here if    Used for Domestic Hot Water
Click here if    Used for Radiant Heating
Click here if    Used for Wood Stoves
Click here if    Used for Snow Melt Systems

Shell and Tube Heat Exchangers  = v50
Brazed Plate Exchangers, Shell & Tube and Heating Coil Heat Exchangers. Plate Heat Exchangers for Hydronic Heating. Shell and Tube Heat Exchangers for isolating Pools, Spas and other systems. Heat Coils used with Air Handlers and Forced Air Systems
 
Water to Air Heat Exchangers - Heating Coils = v8987
Water to Air Heat Exchangers Hydronic Hot Water Boilers with or without Glycol. Use in existing Plenums and used for new and existing hot air furnaces.
 
Precison Metal Products - PMP Air Handlers = v6195
PMP Paukner Air handlers are an excelent choice for converting hot water heat to forced hot air. Use your existing boiler to turn your house or specific areas into forced hot air
 

Thursday, February 19, 2015

Supplement your heating system with a space heater

The Northwest certainly has had a  colder-than-average-winter and the weather in the Midwest and East  as well and it’s still winter in many of these areas. If you heat your home with a gas product your going to be using more fuel to keep up with the colder weather.

You may be able to save some money by supplementing heat with a space heater in the room you use most and turning down the heat in the rest of the house. (Of course you’ll want to turn off or turn down the space heater then when you’re not in the space it’s heating.)

Houseneeds sells a variety of heaters...

Gas Space Heaters - Wall Furnaces and Floor Mounted


Rinnai Direct Vent Gas Furnaces. 5 Btu Sizes in Propane Gas or Natural Gas

Eskabe Direct Vent Gas Wall Heaters - in Propane or Natural Gas. These units do not require electricity which makes them a great little unit if you have frequent power outages.
 
Rinnai Vent Free Gas Space Heaters with up to 99.9% Efficiency. Used for Supplemental Heating. Check your local codes before installing a vent-less heater.
 
Compact, attractive and economical, Direct-Vent furnaces are a popular choice for heating the home 14,000 – 30,000 Btu/hr
 
Empire Console Room Gas Heaters - RH Series Gravity Vented Furnaces in Natural Gas or Propane Gas
 
Please call 802-583-2726 to order or if you have any further questions.

Tuesday, January 27, 2015

Westinghouse Combination Boiler WBRCNG140W

    The Westinghouse Combination Boiler WBRCNG140W is a very high efficiency dual purpose Wall Hung Boiler with an AFUE rating of 94%. The  Westinghouse Combination Boiler  provides 140k BTUs for space heating and comes with an optional Domestic Hot Water Capability that can provide 3.2 gal/minute at a 77 degrees or 5.5 Gallons at a 45 degree temperature rise. This Westinghouse Residential Combi Boiler provides home owners with one appliance that saves money on operating expenses, reduces overall installation costs and takes up less space than traditional space heating and water heating appliances.
     The Westinghouse Combi Boiler also reduces greenhouse gas emissions by utilizing a mesh burner that reduces nitrogen oxide and carbon monoxide production and meets all nationally recognized low NOx emission standards.

Features
  • With On-Demand Hot Water - Combi - Wall Mounted
  • Patented ASME "H" heat exchanger
  • 316L stainless steel - Heat Exchanger
  • 316L stainless steel - Storage Tank
  • Premix burner
  • 28,000 to 140,000 btuh
  • Certified DOE efficiency of 95% and up to 98% Efficency
  • Continuous 5 to 1 modulation
  • Reverse Coil potable domestic hot water supply
  • Intergal system circulator
  • Expansion tank and air vent
  • Natural Gas
  • Can be vented with PVC or CPVC
Specifications:

  • Gas:  Natural Gas or Liquid Propane
  • Nominal heat input: 140,000 Btu/hr
  • Minimum heat input: 28,000 Btu/hr
  • Efficiency: 94%
  • D.H.W. heat output: 140,000 Btu/hr
  • D.H.W. Minimum Flow Rate: 0.5 GPM
  • Maximum heating pressure: 30 Psi
  • Maximum pressure of domestic water circuit: 150 Psi
  • Nominal power supply voltage: 120/60 V/Hz
  • Electric power: 160 W
  • Weight: 110 Pounds
  • Internal Storage Tank Water Capacity (DHW): 1 Gallon
  • Boiler Heat Exchanger Capacity: 4 Gallons
  • Dimensions:17.5" L x 34" H x 15.5" D
  • * DOE Heating capacity is based on standard test specified by the United States

Thursday, January 22, 2015

WestingHouse Condensing Tankless Water Heater

The Westinghouse Residential Tankless Water Heater with a 199,000 Btu and up to 98% Effieciency, The Westinghouse Water Heater has a durable high grade stainless steel heat exchanger. The Westinghouse Residential Tankless produces continuous hot water and has a 10 to 1 turndown ratio (modulation). Eco-friendly and low NOx combustion system.  Vents with 3 inch Schedule 40 PVC, CPVC up to 100 feet.  It is also equipped with a highly innovative gas leak detector.


Westinghouse Condensing Wall Hung Tankless Water Heater WGRTNG199 Features:
  • Maximum flow rate of 11.0 GPM at 35°F temperature rise (5.0 GPM at 77°F rise)
  • Energy Factor of 0.98
  • Primary heat exchanger utilizes 316L Stainless Steel
  • Secondary heat exchanger utilizes 316L stainless steel for better corrosion resistance
  • ENERGY STAR® qualified
  • Complies with Ultra-Low NOx regulations of less than 14 ng less than 20ppm
  • Venting with Schedule 40 PVC, CPVC, PP, Category III stainless steel
  • Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes
 
Techs and Specs
  • Gas Type: Available in NG or LP
  • Btu Range Min.: 15,000Btu - Max. 199,000Btu
  • Efficiency: 98%
  • Venting: 3 Inch up to 100ft Schedule 40 PVC, CPVC, PP
  • Minimum Flow Rate: 0.5 GPM
  • Gas Connection: 3/4 inch NPT
  • Water Connection: 3/4 inch NPT
  • Condensate Drain: 1/2 inch NPT
  • Dimensions: 27.6 inch H x 17.3 inch W x 14.8 inch D
  • Ignition: Electronic ignition
  • Electrical Supply: AC 120C (60 Hz)
  • Water Pressure: Min. 15 psi - Max. 150 psi
  • Weight: 88 Pounds
PDF Manual     PDF User Manual      PDF Brochure    PDF Warranty

Click here for pricing information
 

Monday, December 22, 2014

What PEX is best to use for your application?

The answer will depend on many factors, such as your budget, skill level and whether you have already bought any tools or materials. Wondering what PEX A, B and C letters are? They are used to identify the manufacturing process.
PEX-A is the most expensive of all 3 types and other than slightly greater flexibility than the other (2) types, there are no significant advantages of this type over the other two. Great for all radiant applications easier to install for a person who is a novice due to greater flexibility.

PEX-B Houseneeds elects not to sell PEX-B because we prefer the properties of PEX-A and PEX-C over the PEX-B.

PEX-C is the latest addition to PEX line and price-wise is less expensive than PEX-A. Unfortunately, the cross-linking process for this type creates the least amount of bonds (vs. the PEX-A) therefore, the flexibility of the this product is less than PEX-A. If the PEX tubing becomes kinked during handling, it can be re-formed to its original shape by heating it with an electric heat gun to a temperature of approximately
275F.The tubing will pale slightly when heated and become pliable as the shape restores. Do not overheat, and allow to completely cool undisturbed. Otherwise,  you may have to cut out the kinked section and fix it with a mechincal union. PEX-C can be used with a large variety of installation methods. Our PEX-C is Heat and Domestic Potable Water Approved.

Houseneeds sells the following heating PEX products:

Heatlink PEX-A color is white and is an excellent product for the price. Great for all heating applications. Available in 1/2", 5/8", & 3/4".   Click here for technical information.

HousePEX PEX-A color is red and is priced a little higher than the Heatlink. Great for all heating applications. The tubing coil has an inside diameter exceeding 15 inches, so that memory-effect of its coiling is minimal. The running ft. markings start from 0 at the inside of each coil so that the installer will always know how tubing is left in the coil. It also has a thin coating of PE on top of the barrier in order to reduce noise when installed in joist applications and Aluminum Heat Transfer Plates. Available in 3/8", 1/2", 5/8". 3/4", 1" sizes. Click here for technical information.  

HousePEX PEX-C PEX color is white almost as flexible as our PEX-A PEX-A tubing. Perfect for those underfloor heating applications as well as Domestic Potable Plumbing systems. Heat and Domestic Potable Water Approved.
Manufactured in USA. Available in 3/8", 1/2", & 5/8" sizes.
Click here for technical information.  

Monday, December 15, 2014

Valves for Myson SX & SD Panel and Decor Radiators

The Myson SX, SD and Decor radiators have British Standard straight female pipe threads NOT NPT which means you will need to purchase two conversion valves for each radiator.  the Myson valves are designed to work with the Myson radiators.

The most popular valve is the LKD16AN used mainly for when your pipes are coming out of the wall or floor. This ½ inch Preset Flow Rate Angle Valve Body with no cap is an Adjustable Flow Valve only without thermostatic control and connects to the Myson radiator 1/2 inch British thread with a wrench and 1/2 Inch Copper Pipe with a compression fitting. Please keep in mind the BSP threads are a straight running thread NOT tapered like NPT.

LKD16AN
Use the LKD16SN  only if your pipes are going straight into the radiator from side to side.


If you would like to control the temperature room by room than the Myson 2TRV2HD Valve Head has a sensor element which consists of a liquid-filled capsule with an immersed bellows and push rod. As the ambient temperature rises, the liquid in the sensor’s metal capsule expands and compresses the bellows, causing the integral push rod to close the valve. As the room’s ambient temperature drops, the liquid in the capsule contracts, allowing the bellows to retract the push rod to open the valve.  Another special feature of the Myson 2TRV2HD Valve Head is its two integral locking pins, allowing you to lock the temperature at one setting or limit it to a specific range of temperatures. Setting Ambient Range  is 46°F to 83°F.

Myson 1/2 inch Thermostatic Radiator Valve - Standard Vertical Angle Body Only - 2TRV1/2AN              Myson 1/2 inch Thermostatic Radiator Valve - Inverted Angle Body Only - 2TRV1/2IN           Myson 1/2 Standard Straight Body Only - 2TRV1/2SN


2TRV1/2AN               2TRV1/2IN                 2TRV1/2SN

Myson products are designed to be installed by professional trades people. Myson instructions are meant to be thorough; however it is assumed that the installer has the appropriate technical knowledge related to building codes, standard trade practices, and proper use of the tools of the trade. Should a homeowner without such knowledge or skill take it upon him/herself to attempt the installation, Myson will not be responsible for any damages, injuries or unsatisfactory performance of the Myson product used.  Using other than the Myson specific valves would void the Myson warranty. 


If you have further questions or if you would like to place an order please contact us 866-432-8123 or visit www.houseneeds.com