A tankless water heaters uses 30 to 50 percent less energy than units with tanks, saving a typical family about $100 or more per year, depending on waterTankless units (also called “on demand” units) heat water only when you turn on the faucet. on natural gas or propane. advantage is that they eliminate the extra 40 to 50 gallons of water hot in a big hot tub or mount on a wall. The primary disadvantage is the upfrontThe smaller units that you often see won't produce enough hot water to serve most households. serve one faucet at a time—a problem if you want to shower while the dishwasher isLarger units that can handle the demand of a whole family, but are expensive. But because tankless units have high-powered burners, they also have special venting requirements (a dedicated, sealed vent system, which requires professionalNatural gas burners often need a larger diameter gas pipe, which

adds to the initial The bottom line: When you're pricing a unit, be sure to get an estimate or firm bidThis is not a do-it yourself project unless you have pro-levelYou can find tankless water heaters at many home centers and plumbing specialtyHow much should water heater installation cost? You have to put your self in the shoes of a business that is in business to turn a profit of some sort. All businesses have different overhead which in turn decides what their bottom line would be on their services. I personally would not go with an unlicensed professional for this type of install. You are messing with gas, venting issues, electrical wiring{electric water heater} and updated code issues such as a drain pan and tempature and relief drain lines for heaters that currently do not have them. I do agree that there are some companies that are way out of line for their installs but most of these companies are the really big companies that have very high overheads  I would assume.

Tank type water heaters have changed over the last several years and with these safety changes come bigger prices. The price of steel thanks to China is skyrocketing and tank type water heaters are made of steel. Most wholesale plumbing supply companies cannot match what the big box stores are selling at retail to consumers. I happen to think from research that heaters such as Rheem, Bradford White and AOSmith who have been in business forever make a better product than what you can buy in the big box outlets. You also have to take in consideration the location of the water heater that is being replaced. Is it in the house, basement, garage or attic. Most 40 and 50 gallon water heaters that are purchased in a plumbing wholesale store in Texas cost between 300-340 for a 6 year warranty heater with 6 year on parts and tank. Most big box companies will take a least 24 hours to a week to get your warranty problem taken care of. Most reputable plumbing companies will give same day service if they installed the heater.

So lets break down a typical install at cost to a licensed plumber in TexasHeater: $315, water shut off $6.50, water flex lines or unions to code $20, gas flex line and cut off to code $12, misc fittings $15, Total $368.50 Lets add a 35% profit which is some what low  for a business $129, Total 497.50This doesnt  include permits, pan and drain or any venting issues. The vent must go from the heater to the outside of roof using double wall vent.Outdoor Gas Fire Pit VancouverCost of permit on average $60Most plumbing companies allow for 3 hours of time for a water heater. Homes For Sale In Niceville Fl By OwnerThis includes picking the new one up. Vw Jetta Tail Light Bulb ReplacementDelivering out to house. Draining and removing old water heater.

Hauling off old heater. Installing new heater up to code. Going down to city and pulling permit.Average Labor charges for heater installs $400That would make this install run without extras on any code issues $957.50I just had a 50 gallon gas water heater installed in my house for $1200 but I needed a pan installed. I used a licensed plumber.Are tankless water heaters worth it? I've seen and heard mixed reviews.  They aren't really popular here due to our super hard water which clogs and rots everything it sits in.  A company I used to work for tried electric units about 10 years ago in several homes but had to replace many of them within a few years because the build-up from the hard water hindered their productivity to little more than enough supply to run a sink.  I've heard better success with gas units since there are no electric elements to burn out and gas can get hotter, faster to get through the deposits on the tubing walls inside the unit. Standard electric water heater usually take a 30 amp circuit so they are often wired with 10 guage wire. 

Electric on-demand units large enough to service an entire house usually take 50 amps (or more) from what I've researched in the past.  That means they need a 50 amp breaker and will be wired with 6 guage wire.  By the time you factor in the initial cost of buying the much more expensive on-demand unit and rewiring for it I'm not sure you'll save money in the long run. A better and cheaper option would be to put a timer on your standard water heater so it only kicks on during typical demand times.  They have override switches so you can turn it to cycle normally when you are off of work or need it during the day/night if not during the preset times.  A cheaper point of use water heater at the kitchen sink will ensure you have hot water there even when the main heater is off.  This is usually the point that requires hot water the most frequently.  Remember that your water heater will hold hot water for over an hour once it has cycled off.  Take advantage of that.Do I really need a 75 gallon water heater and is the install estimate of $4500-$6000 fair?

Depends a lot on your configuration - he may have been including direct outside venting because your existing heater/furnace duct was not large enough to handle the added load, and may have figured running larger piping to the jetted tub and maybe upsizing the valve and flex tubing at the gas line. This all assumes you have adequate access and installation space for the larger tank - they tend to be fatter rather than much taller. I would talk to several plumbers - if you get quotes from 3 or more, it should become obvious right off if one is high-balling you. Of course, do not tell the others what the other's bids were. The water heater itself will cost about $1000-2000 for that size - about double a 50 gallon, which usually costs about $800-1500 installed (replacing an existing plumbed-in one). The larger heater may take a bit of beefing up of the support platform for the added weight, but assuming you have adequate headroom, installation cost using existing ductwork and piping would not be any more than for a 50 gallon, so say $2000-3500 range installed.