Thank you so much for this video and your prior one showing installation. I am in Central Florida where we get freezes sometimes but the ground water never goes below 60degrees so this will work nicely. Our old tank water heater started leaking and had to be replaced and we have been saving money just to buy a replacement at $400-600 (plus the repairs due to the leak). We have been taking cold showers for months!! I think the cold water knocked some sense into us because we realized we really only need hot water in the shower and that started us the journey into European style water heating. With your installation it's even better because the old water heater has mostly the same hook up and the shower is 5 ft away so no real heat loss in piping.
For $60, you can't go wrong. The bad news is that the hot shower in the winter requires a little flow restriction, but the good news is that Florida winters are only a few weeks long. Be sure to use brass bushings instead of the cheap galvanized ones that I used for testing purposes. They're a few dollars more and will last decades longer.
@@SAPLSMW A year later and it's still working great. Just like in this video it struggles in the winter to hit above 100 degrees but we don't mind. On another note it was hard to find that model as cheap as I bought it now.
The old Marey's wouldn't switch on until hitting 1.5GPM, but newer tankless heaters have more accurate flow sensors and turn on with just a trickle. These DSK-65's don't require much flow to operate.
Hey one more question, which I noticed on your follow up video. You're hooking this heater up with 240v and our heater, DSK-45 , 40 amps, says it is 110 Volts. Is this also a mistake, or should I wire it to the #10 , 30 amp wire anyway? Thanx, GOD Bless !!!
I haven't installed a DSK-45. If it calls for 110 volts then 4,500 watts would call for ~40 amps. That doesn't seem right, though; the voltage in the rest of the world (where these are made) is 220 volts to 240 volts. I don't like the sound of a 110v tankless water heater. I don't know where you live, but this device works okay south of I-10 where the water comes out of the ground at 60°F during the wintertime. With a slow flow rate then you can get a very nice 113° shower.
Naturally, a shorter run with thinner pipes is the optimal solution in these cases. Building code in this case calls for 3/4" pipe to and from the tank water heater, so there is a combination of galvanized and CPVC running to the location in the video. The shower and kitchen sink are just feet away from the tankless heater, but displacing all of the cold water in these fat pipes and warming the galvanized (the CPVC isn't considered here because its R-value is so high) takes a minute. When I remodel the kitchen, I'll move the tankless water heater to under the kitchen sink; the shower and bathroom sink are on the other side of the wall, so the runs will be very short.
This water heater draws just 30 amps at 220V, so the existing wiring from the tank water heater and the 30-amp breaker remained. The only things you need to swap the tank for this tankless is two brass 1/2" to 3/4" bushings, plumber's tape and three large wire nuts.
@@SAPLSMW What is the coldest winter day there friend? I'm just wondering what your working with in terms of heat loss. I wouldn't mind having one of these.
Thank you so much for this video and your prior one showing installation. I am in Central Florida where we get freezes sometimes but the ground water never goes below 60degrees so this will work nicely. Our old tank water heater started leaking and had to be replaced and we have been saving money just to buy a replacement at $400-600 (plus the repairs due to the leak). We have been taking cold showers for months!! I think the cold water knocked some sense into us because we realized we really only need hot water in the shower and that started us the journey into European style water heating. With your installation it's even better because the old water heater has mostly the same hook up and the shower is 5 ft away so no real heat loss in piping.
For $60, you can't go wrong. The bad news is that the hot shower in the winter requires a little flow restriction, but the good news is that Florida winters are only a few weeks long.
Be sure to use brass bushings instead of the cheap galvanized ones that I used for testing purposes. They're a few dollars more and will last decades longer.
@@SAPLSMW A year later and it's still working great. Just like in this video it struggles in the winter to hit above 100 degrees but we don't mind. On another note it was hard to find that model as cheap as I bought it now.
Thank you for this review. Have you an idea about the minimum switch on flow rate ?
The old Marey's wouldn't switch on until hitting 1.5GPM, but newer tankless heaters have more accurate flow sensors and turn on with just a trickle. These DSK-65's don't require much flow to operate.
Hey one more question, which I noticed on your follow up video. You're hooking this heater up with 240v and our heater, DSK-45 , 40 amps, says it is 110 Volts. Is this also a mistake, or should I wire it to the #10 , 30 amp wire anyway? Thanx, GOD Bless !!!
I haven't installed a DSK-45. If it calls for 110 volts then 4,500 watts would call for ~40 amps. That doesn't seem right, though; the voltage in the rest of the world (where these are made) is 220 volts to 240 volts.
I don't like the sound of a 110v tankless water heater. I don't know where you live, but this device works okay south of I-10 where the water comes out of the ground at 60°F during the wintertime. With a slow flow rate then you can get a very nice 113° shower.
Have you had any issues with this unit since you installed it?
I have had no problems with the device since I installed it. There are now two of these in two of my rentals operating without issue or complaint.
How many feet from your hotwater.tank to your faucets
Naturally, a shorter run with thinner pipes is the optimal solution in these cases. Building code in this case calls for 3/4" pipe to and from the tank water heater, so there is a combination of galvanized and CPVC running to the location in the video.
The shower and kitchen sink are just feet away from the tankless heater, but displacing all of the cold water in these fat pipes and warming the galvanized (the CPVC isn't considered here because its R-value is so high) takes a minute. When I remodel the kitchen, I'll move the tankless water heater to under the kitchen sink; the shower and bathroom sink are on the other side of the wall, so the runs will be very short.
What breaker you use .30 or 49 amp from your water tank
This water heater draws just 30 amps at 220V, so the existing wiring from the tank water heater and the 30-amp breaker remained. The only things you need to swap the tank for this tankless is two brass 1/2" to 3/4" bushings, plumber's tape and three large wire nuts.
@@SAPLSMW ok thanks I'll have to change my breaker also if I get one mine's 40 amp.
@@SAPLSMW What is the coldest winter day there friend? I'm just wondering what your working with in terms of heat loss. I wouldn't mind having one of these.
Yr higher than 3gpm
Yr higher than 1.5 gpm