Floor Heat Dilemma

[bigleo48]

All,

Now that we are in a heat wave, I figure it was time to start thinking about floor heating.

In one of my buildings I have two 100k BTU Kiturami Tankless boilers. They are the dual kind (floor heat and hot water in one unit), so I don't need a heat exchange unit to deal with the glycol to hot water heat exchange.

My problem is that the Kiturami World Boilers are junk. They need constant attention and are unreliable. So I'm looking for another solution. Here are my options as I see it.

1-Get a different dual boiler.
2-Ditch the dual boiler idea and get a heat exchange and new water boilers (ideas as to brands and reliability...I was thinking the Takagis).
3-Get a glycol boiler for the floor heat only (like a weben/jarco from Kleenrite).

Anyone with better ideas and experience, please let me know...

 

[Earl Weiss]

Quite frankly you seem to know more about choices than I do so I am interested in any feedback you get.

I can't help but wonder about relative efficiencies of a Dual Boiler versus seperate units since the demand for Hot water and floor heat can be vastly different.

 

[pitzerwm]

When I had my wash, I had the tankless heaters for both the bays and the floor heat. This has been discussed here before.

 

[ken-pro]

A customer of mine has had good success with the Navien brand dual boiler. These are even equiped with a time controlled circ. pump for keeping the hot water line instantly hot.

 

[bigleo48]

When I had my wash, I had the tankless heaters for both the bays and the floor heat. This has been discussed here before.

Sure...but I was wondering if there was something new or a brand that I was not aware of that might be the ticket.

 

[bigleo48]

A customer of mine has had good success with the Navien brand dual boiler. These are even equiped with a time controlled circ. pump for keeping the hot water line instantly hot.

Kevin,

The Navien boilers is currently my number one option. About $2k a unit and more reliable I have been told.

I like the fact that they auto fill the hydronics when it senses it being low. The pre-heating options is good is you need a circulation pump to keep a hot water loop warm. I have this for my petwashes and it keeps circulating warm water right to the petwash benches to give the customer quick hot water.

Big