Regina Johnson
New member
I want to replace my tank water heater with a tankless one. I live alone. Is it really more energy efficient?
Perfect timing on the video post! I wish he would have tried running the shower and the sink at the same time. I would bet money, the low flow on the tankless would be triggered and shut off.Timely video by Changing Lanes:
Good thing I read all the replies, because I already had Chad's video copied and I was ready to post a link to it. He did a great job with explaining the two systems. I don't think I will ever want a tankless system, based on what I saw.Timely video by Changing Lanes:
Had one on my first ..... never again!! Your timing was great!Good thing I read all the replies, because I already had Chad's video copied and I was ready to post a link to it. He did a great job with explaining the two systems. I don't think I will ever want a tankless system, based on what I saw.
Thanks Jim. I agree that technology keeps improving. We need to adapt when it makes sense for us.My observation only - not an endorsement... Like DC refers, tankless water heaters seems to be the direction much of the industry is going. While the RV variants seem to be a bit more nuanced in their use residential units, I believe they will continue to improve in usability.
That said - I've used a couple of brands over the years and will soon be using the Furrion brand in my Delta. We'll see how it goes
Bozo, Now that’s what I’m talking about. When you want advice about your teeth, get it from a dentist. When you want pro advice on a HW tank. Get it from an HVAC/R pro. ThanksBeing a plumber and hvac/r guy, my experiences with tankless heaters is where I draw my conclusions from. Tankless heaters are more trouble than they are worth. Only advantages are that you can take a shower longer. No more efficient at all. What little savings they might claim is used up in another resource…water. Flow is key, too little, you have a problem, too much(for a given heater) and you have a problem with not enough hot water. Maintenance is higher, not necessarily hard but more. Must flush and descale at least yearly. Controls can also be problematic. I am not a fan.
What you described is exactly why tankless is not a good choice for rv applications. Also if flow diminishes enough, say when trying to modulate temp with cold, it could also shut off momentarily causing a cold shot to the shower. I have spent countless hours educating residential customers on this. In some respects, they are snake oil. They do have uses, just not good for rv, in my opinion.Just got a Delta after 6 years of Grand Design with traditional 6gal gas/electric water heaters. After reading this thread I was scared that the tankless heater would disappoint. Well, it DID disappoint 😔
I read the warning here about proper PSI so ahead of time I got a regulator with inline gauge, rather than my previous 30psi regulator. It came factory default set to 45psi but I tested the campsite and it seemed to max at providing 40psi.
First night shower testing, it took a surprising while to get hot with only the hot knob. Maybe because it was 50 degrees outside? The furrion was set to 115F. I didn't bump it to 124F until day2. As far as kitchen (rear in the 294RK, much further than shower) it took FOREVER to get any warmth out, enough to wash a greasy dish. Over the weekend I think we wasted MORE cold water into our kitchen holding tank than we used warm (never got fully hot in the kitchen) to wash dishes.
Only the final morning, was the shower so hot it burned and we needed to mix in cold! Not sure what changed from the day before when it was also set to 124F.
Will it be better in warmer weather? Or with more PSI? We shall see! But definitely disappointing how it wastes holding tanks waiting for the hot.