Laddomat 21 Presentation

[Hansson]

http://www.termoventiler.se/media/upload/Laddomat.swf

Wrong language but look at the pictures
Press play

 

[DaveBP]

Welcome back, Hansson.

If a picture is worth a thousand words, a video must be worth at least ten thousand.

The Laddomat 21 seems to perform the same functions as the Termovar Loading Unit. Is this true? Or does one have some advantage over the other?

 

[Singed Eyebrows]

Welcome back, Hansson.

If a picture is worth a thousand words, a video must be worth at least ten thousand.

The Laddomat 21 seems to perform the same functions as the Termovar Loading Unit. Is this true? Or does one have some advantage over the other?

Dave, only thing I heard was that the Lado runs out of pump cap. on larger boilers per Zenon. I use mine on a 32KW with no problems. They do the same thing & are tank chargers/boiler protectors. The Termovar LU seems to have more capacity & hopefully Chris can answer this better, Randy

 

[jason elmer]

A great example on how to plumb heat storage as well. I believe it's called hydraulic separation.

 

[DaveBP]

only thing I heard was that the Lado runs out of pump cap. on larger boilers

Just looking on their website for the first time in quite a while, they seem to have some newer larger designs for up to 120KW (nearly 400K BTU's).

Don't know if they are available here, though.

Laddomat uses a (spring loaded?) poppet valve gizmo to open the unit to flow-through when the circulator isn't running. Termovar uses a brass/rubber hinged flap over a hole about 1" dia. No idea which is more reliable. I assume the poppet in the Laddomat closes easily (gravity?) to stop reverse flow and keep the boiler from becoming a self-circulating radiator when the fire is out and the storage tank is full. (Not positive from the illustration what the spring is doing there). The rubber flap in the Termovar closes from its own weight so wouldn't take much reverse pressure to close it. Have you noticed your boiler supply line staying hot long after the fire is burned out completely?

P.S. while typing this I looked at another illustration on their website and see the poppet is just closed by its own weight. The spring is just there for assembly of the valve and seat into the casting, I guess.

http://www.termoventiler.se/media/upload/LM21-60_reservdelslista.pdf

 

[Singed Eyebrows]

only thing I heard was that the Lado runs out of pump cap. on larger boilers

Just looking on their website for the first time in quite a while, they seem to have some newer larger designs for up to 120KW (nearly 400K BTU's).

Don't know if they are available here, though.

Laddomat uses a (spring loaded?) poppet valve gizmo to open the unit to flow-through when the circulator isn't running. Termovar uses a brass/rubber hinged flap over a hole about 1" dia. No idea which is more reliable. I assume the poppet in the Laddomat closes easily (gravity?) to stop reverse flow and keep the boiler from becoming a self-circulating radiator when the fire is out and the storage tank is full. (Not positive from the illustration what the spring is doing there). The rubber flap in the Termovar closes from its own weight so wouldn't take much reverse pressure to close it. Have you noticed your boiler supply line staying hot long after the fire is burned out completely?

P.S. while typing this I looked at another illustration on their website and see the poppet is just closed by its own weight. The spring is just there for assembly of the valve and seat into the casting, I guess.

http://www.termoventiler.se/media/upload/LM21-60_reservdelslista.pdf

Dave, They had these "different" looking Lado's on the UK websites for awhile. I have never seen them available here. As I remember my Lado just had a brass valve that opened or closed by pump pressure or gravity, no spring assist. I have not checked to see if my boiler is becomming a radiator after burnout & will do this, Randy

 

[Singed Eyebrows]

I have 150 degrees + in the top of my tank with a stone cold boiler feed pipe so the Lado is preventing unintended flow, Randy

 

[Hansson]

http://www.termoventiler.se/media/upload/Laddomat_S.mov
New Link.

Check this out to.
http://www.termoventiler.se/media/upload/effektberakningsmall.xls

Here you can calulate the effekt on the boiler and the tanks energy

 

[pwschiller]

You can get the Laddomat 21-60 and the 21-100 (up to 120kW model) from Brian Crawford, (broken link removed)

I have a Laddomat 21-100 that I'll soon be installing with my Effecta 60 kW boiler.

 

[Hansson]

http://kotly.com/index.php/cPath/8_250
Kotly got it to. 315 USD + shiping

 

[Tennman]

Perfect timing for me Hansson that you've brought up this topic. I'm currently in discusions with Brian at Up North about using a Laddo 21 in my storage upgrade this spring/summer for our 60 Class. Being one of the folks that had to adjust/throttle his Danfoss to get the flow to the house right and the fact I need to add a storage circ pump... I love the idea of the 21 combining all those functions and managing storage all in one unit. The odd thing to me is I recall lots of discussions and interest in the Laddo 21 product several years ago and then it went dormant. For such an attractive product, why don't I see it used more frequently by you guys. Any reason, besides cost, that it seems like most of you guys with storage use 2-3 components to manage boiler temp and tank energy. Although the Laddo technology may be somewhat more expensive, in the overall system cost, several hundred additonal bucks for the 21 vs piecing together components seems very reasonable. So my question is since the Laddo 21 appears so appealing why don't I see it used more here. Is it just cost or is there something I'm missing.

 

[Armaton]

I bought the LK 810 because I didn't want to monkey with all the parts, and needed the thermosiphon capability for my overheat protection. However, when I was researching them, the consensus seemed to be that piecing it together was as you said several hundred bucks cheaper, and if the pump went, much quicker to replace say a Taco 7, or 15-58FC, rather than have to order the pump for the loading unit, (unless of course you happen to buy a spare). Could be back up in no time slaving in another off the shelf pump. Because my tank is vertical, and the top is 5+ feet above the top of my boiler I am foregoing an overheat loop and using thermosiphon and batch burning to insure no overheat.

 

[DaveBP]

Well Tennessee, I think other than being overpriced, the reason you don't see more loading units discussed on this forum is that those that have them have few problems with them. They just work as intended. There's nothing to fiddle with.

And that's boring.

 

[Tennman]

LOL! Dave, if the MAJOR reason I don't see more discussions about the Laddo is that it's BORING.... I'm all in! Very funny. So Dave, you've been around here a while, you know of a bunch of happy Laddo users who aren't Hearth Forum geeks like some of us? I think I'm going to pull the trigger if boring is it's only fault.

 

[Tennman]

Bump.... so all Laddo users are bored and happy apparently?? I hear crickets in the backgroud.

 

[Tennman]

Bump.... so all Laddo users are bored and happy apparently?? I hear crickets in the backgroud.

 

[maple1]

I have an LK810, in use since early October. Have kind of forgotten about it - it just quietly goes about its business. Also, the pump in it appears to be an ordinary Grundfoss 15-58 3 speed (aside from a nice gray paint job) - so I'm assuming I could just swap a new one in if something were to happen to it.

 

[Armaton]

My LK 810 literature says max of 2800 lph, works to 12.328 gpm. 15-58fc is 17gpm, so must be some difference? Tho if it does slave in, may give better performance? hmmm?

 

[Tennman]

Thanks guys.... I just had an epiphany

The Termovar LK 810 Loading Unit is made by LK Acaso AB in Sweden sold by Smokeless Heat

The Laddomat 21 Charging Unit is made by Termoventiler AB..... ALSO in Sweden sold by Up North Energy

The name Termovar and Laddomat seemed to be used here over the years interchangeably that I thot it was the same gizmo being called different names like VW bug vs VW beetle and made in Sweden.... BUT two Swedish companies selling two different "Charging or Loading Units" that apparently does the same thing

OMG... So now I just found out there are at least two happy Termovar customers and apparently quite a few bored Laddomat users. Geez..... Thanks ya'll. So now I'll do a little research to compare the LK 810 to the Laddo 21.... now that I know there are TWO Loading Units I'll do a little comparison shopping.

I almost want to start a new post sharing my to the mountaintop experience.

 

[Armaton]

Tennman,

ESBE makes them also, VTC 141 and VTC 143 if I remember correctly. (Edit) Sorry LTC 141, LTC 143, and they make an LTC 171 that has 1 1/2" and 2" connections.

 

[Tennman]

Thanks to all. This post has been very useful for my storage decisions.