Vent Water
Uncategorized January 14th. 2011, 9:43amVent Water
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 Rheem RTG 64DVN Tankless Water Heater Direct Vent  US $605.99
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 Rheem RTG 84DVN Tankless Indoor Direct Vent Natural Gas Water W Vent Kit Valve US $759.99
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 Reliance 50 Gallon Natural Gas Power Vent Water Heater US $899.99
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 Bosch AQ3ES 3 inch Horizontal Vent Kit for Tankless Water Heaters New US $65.00
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 Heat Fab RTG20007 Rheem Tankless Water Heater Installation Vent Kit 4 US $225.00
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 AQUAH DIRECT VENT NATURAL GAS TANKLESS GAS WATER HEATER US $389.50
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 AQUAH DIRECT VENT PROPANE GAS TANKLESS WATER HEATER 14L US $439.95
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 Rheem Prestige Direct Vent LP Tankless Water Heater RTGH 95DVP NEW US $1,189.99
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 Tankless Water Heater Rain Cap Vertical Vent Termination Noritz RC4 US $39.99
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 Rinnai 224053 39 Plastic Vent Pipe Extension for Non Condensing Tankless Water US $40.20
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 Rinnai 224051 10 Plastic Vent Pipe Extension for Non Condensing Tankless Water US $26.13
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 Watts Water Technologies 0950106 FV 4M1 1 8 AUTOMATIC AIR VENT VALVE US $13.30
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 New Rheem Richmond Propane Direct Vent Tankless Water Heater RMTG 66DVP US $615.99
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 AQUAH PREMIUM DIRECT VENT NATURAL GAS TANKLESS WATER HEATER 14L 37 GPM US $439.95
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 Tankless water heater vent kit for 53DV 66DV models US $140.79
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 LOCHINVAR CORP PRN050G 48 GALLON POWER VENT NATURAL GAS WATER HEATER 115 60 1 US $999.99
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 HYRDO HEAT A675XRPDTL 9211761003 POWER VENT POTABLE WATER HEATER 165294 US $1,331.00
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 APOLLO HYRDO HEAT A650XRPDTL5 POWER VENT POTABLE WATER HEATER 165305 US $1,244.00
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 AQUAH PLUS DIRECT VENT NATURAL GAS TANKLESS GAS WATER HEATER 10L 265 GPM US $389.50
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 RBI SW200 Natural Gas Comm Water Heater w Atmospheric Vent US $999.99
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 Bosch AQ4 Tankless Water Heater Sidewall Power Vent Kit US $400.00
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 Noritz Tankless Water Heater 98GPM Standard Vent Nat Gas In Outdoor NR98 SV NG US $879.99
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 Rheem Prestige Direct Vent NG Tankless Water Heater RTGH 95DVN NEW US $1,189.99
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 Rheem Ruud AP11645 115V Water Heater Vent Package ZX US $412.90
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 NORITZ VP3 90ELB 90 DEGREE TANKLESS WATER HEATER STAINLESS VENT ELBOW 3 VENT US $49.99
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 NORITZ Tankless Water Heater Vent Cap US $150.81
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 NORITZ TANKLESS WATER HEATER SHORT 4 DIRECT VENT KIT US $289.99
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 NORITZ VP3 45ELB 45 DEGREE TANKLESS WATER HEATER STAINLESS VENT ELBOW 3 VENT US $44.99
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 NORITZ VT5 SL TANKLESS WATER HEATER STAINLESS STEEL LOUVERED 5 VENT TERMINATION US $109.99
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 NORITZ VT3 SH TANKLESS WATER HEATER STAINLESS STEEL HOODED 3 VENT TERMINATION US $104.99
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 NORITZ VP5 90ELB 90 DEGREE TANKLESS WATER HEATER STAINLESS VENT ELBOW 5 VENT US $69.99
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 NORITZ VP4 45ELB 45 DEGREE TANKLESS WATER HEATER STAINLESS VENT ELBOW 4 VENT US $54.99
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 Noritz VP4 18 FLEX 18 Flexible Vent Pipe for Tankless Water Heater US $39.99
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 NORITZ VT5 SH TANKLESS WATER HEATER STAINLESS STEEL HOODED 5 VENT TERMINATION US $114.99
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 AQUAH PLUS DIRECT VENT PROPANE GAS TANKLESS WATER HEATER 10L 265 GPM US $389.50
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 AQUAH PREMIUM DIRECT VENT PROPANE GAS TANKLESS WATER HEATER 14L 37 GPM US $439.95
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 Tankless water heater vent kit for 53PV models US $140.79
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 Noritz Tankless Water Heater VC 3 Outdoor Vent Cap V 80 VC3 US $49.99
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 NORITZ TANKLESS WATER HEATER LONG 4 DIRECT VENT KIT US $209.99
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 Vent Cap for T K Jr T K3 Takagi Tankless Water Heater US $54.00
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 Rheem Direct Vent NG Tankless Water Heater RTG 64DVN NEW US $649.99
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 NORITZ N VENT STAINLESS STEEL HORIZONTAL VENT KIT for TANKLESS WATER HEATERS 4 US $189.99
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 Noritz NC250 DV ASME LP Indoor Direct Vent Tankless Water Heater Propane US $1,995.00
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 Noritz NC250 DV ASME NG Indoor Direct Vent Tankless Water Heater Natural Gas US $1,995.00
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 Bradford White DS1 50S6FBN 50 Gal Natural Gas Direct Vent Water Heater US $875.00
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 Reliance 40 Gallon 40000 BTU Energy Star Natural Gas Power Vent Water Heater US $950.00
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 Noritz VT4 S45 Tankless Water Heater 45 Degree 4 Vent Termination US $39.00
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 DIRECT VENT NATURAL GAS TANKLESS WATER HEATER 37 GPM US $439.95
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 Noritz Tankless Water Heater VENT Kit WT5 5 Wall Thimble with VT5 SH 5 Hood US $135.00
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 Rheem Direct Vent LP Tankless Water Heater RTG 84DVP NEW US $789.99
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 AQUAH DIRECT VENT PROPANE GAS TANKLESS WATER HEATER NEW US $389.50
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 Watts Water Technologies 0841005 SVA ADJ STEAM AIR VENT US $14.64
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 Rheem RTG 84DVN Tankless Water heater Direct Vent US $819.00
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 Takagi TH2DVLP White Energy Star Direct Vent Tankless Water Heater US $1,293.60
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 Rinnai 224077PP 45 Degree Vent Pipe Elbow for Condensing Tankless Water Heaters US $32.16
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 Rinnai 224087PP 10 Vent Pipe Extension for Condensing Tankless Water Heaters US $20.10
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 Takagi TH2DVNG White Energy Star Direct Vent Tankless Water Heater US $1,293.60
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 Rinnai 224080PP 39 Vent Pipe Extension for Condensing Tankless Water Heaters US $30.15
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 Rinnai 224079PP 19 1 2 Vent Pipe Extension for Condensing Tankless Water Heaters US $25.46
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 Rinnai FSVL3604SP 4 X 36 Vent Pipe for 98 Series Non Condensing Tankless Water US $57.62
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 Rinnai 224078PP 90 Degree Vent Pipe Elbow for Condensing Tankless Water Heaters US $22.78
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 New Rheem Paloma Tankless Water Heater Propane Gas Direct Vent 74 GPM PTG 74DVP US $703.99
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 TANKLESS WATER HEATER PROPANE LPG DIRECT VENT 25 BATH US $494.95
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 TANKLESS WATER HEATER NATURAL GAS 25 BATH Direct Vent US $494.95
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 GAS TANKLESS WATER HEATER DIRECT VENT WHOLE HOME US $494.95
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 TV 09 Direct Vent Kit T K Jr Takagi Tankless Water Heater US $44.00
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 Rinnai Tankless Water Heater Roof Vent Flashing US $25.00
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 Air Vent valve for Solar Water Heater Pressure Relief valve size1 2 copper US $6.99
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 Reliance 40 Gallon Propane Gas Power Vent Water Heater US $829.99
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 Power Vent Water Heater Blower US $35.00
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 Noritz FRF 4 FRF4 N Vent 4 Flat Roof Flashing Tankless Water Heater US $39.99
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 NEW TANKLESS HOT WATER HEATER FOR PROPANE DIRECT VENT US $494.95
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 Tankless Water Heater CVP 12STR NORITZ 12 Concentric VENT PIPE 4 US $29.99
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 Tankless Water Heater Ameri Vent 3e12 B Vent Gas Pipe 3 inX12 in 6 pack US $39.99
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 Tankless Water Heater Ameri Vent 3e24 B Vent Gas Pipe 3 inX24 in 6 pack US $49.99
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 Noritz VP3 36STR N Vent 3 x 36 Rigid Straight Pipe Tankless Water Heater US $34.99
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 Tankless Water Heater Noritz VT4 S45 N Vent 4 45 Degree Bird Screen US $29.99
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 Tankless Water Heater Rain Cap Vertical Vent Termination Noritz RC3 US $29.99
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 Rheem 50 Gal FVR Nat Gas PWR Vent Water Heater 43VP50E2 US $599.00
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 Rheem 50 Gal FVR Nat Gas PWR Vent Water Heater 43VP50E2 US $399.00
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 New Rheem 74 GPM Tankless Water Heater Commercial Propane Direct Vent GT 199DVP US $703.99
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 Rheem Direct Vent LP Tankless Water Heater RTG 64DVP NEW US $649.99
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 Noritz N 069M DV LP Tankless Water Heater 69 GPM Direct Vent Propane US $703.99
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 Noritz N 069M DV NG Tankless Water Heater 69 GPM Direct Vent Natural Gas US $703.99
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 Noritz N 084M DV LP Tankless Water Heater Indoor Only Direct Vent Propane US $1,055.99
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 New Rheem Tankless Water Heater 74 GPM Propane Gas Power Vent RTG 74PVP US $703.99
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 Bosch Tankless Water Heater ES VVT Vertical Vent Kit for AquaStar 2700ES 2400ES US $270.00
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 NATURAL GAS TANKLESS WATER HEATER 16 L with Power Vent US $349.95
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 NORITZ Tankless Water Heater Vent Flue Terminal VT4 TS 27 aka FF 100A 700 INT US $199.99
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 Rheem Direct Vent NG Tankless Water Heater RTG 95DVN NEW US $999.99
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 Eccotemp Horizontal Stainless Steel Z Vent Water Heater Vent Kit 3 US $199.99
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 4 Z Vent Wall Hung Water Heater Vent Kit w Backflow US $250.00
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 GAS WATER HEATER DURA VENT KIT 4 STANDARD MOUNT STAINLESS PRO TECH FAS N SEAL US $250.00
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 WATER HEATER Natural Gas 50 Gallon Power Vented US $1,167.00
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 Z Vent 2SVEDWCF03 Stainless Steel Horizontal Condensation Drain Pipe Tee Qty 3 US $84.95
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 Noritz VT4 TL 27 Sealed Combustion Long Vent Termination Water Heater US $229.00
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 Noritz VT4 SH Horizontal 4 Hood Vent Termination Tankless Water Heater US $95.00
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 Noritz VP5 90EL Tankless Water Heater 90 Degree Elbow Vent Pipe 5 US $69.00
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 Noritz VP5 45EL Tankless Water Heater 45 Degree Elbow Vent Pipe 5 US $65.00
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 Noritz VP5 94ADJ Tankless Water Heater 7 94 Adjustable Vent Pipe US $54.00
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How do I stop the dripping from my water heater vent pipe? .?
The dripping is sporadic but annoying & is where the vent pipe turns to go up through the floor.
what is happening is cold outside air is being drawn in thru the vent pipe due to high negitive pressure within the house due to most probably a furnace which uses inside air for combustion and it needs to be replaced. The water byproduct of gas consumption then condenses out on the long pipe and it runs down
Your option is to install a make up air pipe into the intake of the furnace and damper that so it will eleviate the pressure difference.
The other alternitive is to install in the vent a heat activated damper which will close when the water heater isnt firing. That costs about $50 and is called a VentDamper. Saves heat too.
Tankless Water Heater Installation Cost
Tankless water heaters are a good thing, for your pocket in saving energy and money and being environmentally friendly.
While most of the rest of the world has adapted to tankless water heater decades ago, here in the US we are getting slowly informed about them.
Well, we like to heat our water like our great grand parents did, almost. It is not entirely our fault, our low energy prices and our domestic tank water heater manufactures like to keep it that way, more profits for them. That is why none of them manufacture any tankless units. Yes they do have them in their product offerings under their label. Even the label is not made here in the US, it is stuck on the unit by some Asian manufacture.
Tankless water heaters are hi tech appliances with multiple microprocessors, electro mechanical valves, temperature sensors, flow regulators and more. The unit cost is about the same as a good storage tank water heater, maybe 10%-15% more. But when you get a quote from your neighborhood plumber for a tankless unit it is often 3x or more than the storage tankless water heater.
So we is the cost difference coming from? It comes from INSTALLATION. Now how difficult is it to install a tankless water heater you ask. The answer is actually very simple, in some ways simpler than a traditional tank water heater.
The problem lies with overly conservative calculations and the resulting additional requirements. The biggest being the fuel, gas supply.
Gas Supply requirements
Most whole house tankless water heaters require a 199,000 Btu/h gas supply. Now, that is only required when it runs full power. It is like driving your car at maximum speed. Most building departments require you to run a separate gas line for the tankless, which can become very expensive and drives up the cost of the installation.
Their argument is that one should be able to supply the full 199,000 Btu/h all the time regardless of the gas usage of other gas appliances in the home.
They want you to add up for example :
1- Furnace 80,000 Btu/h
2- Gas Dryer 50,000 Btu/h
3- Gas Stove 60,000 Btu/h
4- Fireplace 50,000 Btu/h
5- Gas Cooktop 50,000 Btu/h (let's say six burner model)
Total : 290,000 Btu/h
The regular water heater uses about 40,000 Btu/h
Based on these calculations and a worst case gas volume/pressure table for gas line diameter requirement you will be forced to install a new gas line for the tankless water heater.
This method ensures that in case your :
Furnace is full on and
Gas Dryer is running and
Gas Stove is on full power and
Fireplace is on and
Gas Cooktop is on with all its 6 burners full power you can run the tankless unit at full power with its 199,000 Btu/h. and typically the 199,000 btu/h is running when 2 people are taking shower at the same time and the washer is running and you are washing dishes by hand (Dishwasher heats its own water electrically).
Now, is this a realistic situation? NO NO NO, but they make you pay for that.
Let's take another example. A typical home has an electric supply service of 100 Amperes, provided by the utility company. Now when you open up your electrical box and add up all the breakers you have there it will be 200 amperes or 300 amperes. This means that if your run all your electrical appliances, lights and plugs you'll be in the dark because the main breaker of 100 Ampere will trip and cut the electricity off. That is because the electric utility company is limiting the total power you can draw at anytime.
That is not a problem most the time. Sometimes when you have your electric dryer and air conditioner and other high power appliance running at the same time you'll be forced to compromise so that the breaker will not trip.
The same should be through with gas supply too. The gas meter with its attached regulator limits how much gas you can draw, rightfully so. In the above example we need almost 500,000 Btu/h and this is above what the meter/regulator is set to supply.
But this over design in installing a separate gas line for the tankless drives up the installation cost without a real benefit.
In most situations the existing gas line is sufficient for the tankless with some limitations on total gas usage at once.
Exhaust Venting
Here is another situation that drives up the cost, separate venting. Without going too much into the details of it here is a summary.
Newer tankless water heaters are highly efficient, 92% and more and therefore their exhaust temperature is very low, about 120 F. They can be vented with PVC instead of stainless steel models that have a 300 F exhaust temperature.
These new models are condensing units and there is condensation in the venting. That condensation fluid is lightly acidic and should flow back into the unit where it is neutralized and drained.
When replacing the storage tank heater the existing venting is often of galvanized sheet metal that CAN oxidize or rust over long period of time when and if condensation collects inside of it.
A properly installed tankless vent is sloped towards the unit and any condensate fluid would flow back into the tankless unit and is then neutralized and drained and is not collected in the galvanized sheet metal vent.
Here again the requirement for a separate venting for the tankless drives up the installation cost.
Most plumbers like to do the additional work, it is more revenue for them.
Would it not be for the separate venting and separate gas supply line a tankless installation and total cost would be much lower and slightly higher than a regular tank water heater. Because of its longevity and energy saving tankless water heaters would be actually the less expensive solution.
It seems a more practical and realistic approach would bring down the cost of a tankless water heater significantly and make it more of a mainstream approach like in many other countries. It would reduce our energy cost, provide the convenience of endless and clean (no chance of bacteria growth)and help the environment not only in harmful emissions but also in the reduction of disposal of roughly 9 million tank water heaters in landfills annually.
For more articles, information and sales of tankless water heaters please visit us at http://www.justtankless.com
About the Author
Al Johnson has extensive engineering and field experience in energy conservation and renewable energy production. He is actively involved at http://www.JustTankless.com and http://www.allied-solar.com. He holds California State General Building and Electrical Contractor licenses.
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