hot box

[steve r]

New XXXXXXXXXXXXXXXXXXXX 12 volt@4gpms to 8gpms .kersone run .@300 ft schedule 80 coil.

 

[Dave Olson]

How much pressure do you suppose that schedule 40 coil will handle?

Dave Olson

 

[steve r]

How much pressure do you suppose that schedule 40 coil will handle?

Dave Olson

IT KEEPS A STEADY 5 GPMS ON A 20 INCH SURFACE CLEANER .I DONT DO MUCH FLAT WORK .THROW IN A SMALL WALKWAY WITH HOUSE WASH.MY GPMS ARE OFF OF A GAUGE .THE HOT WATER SEEMS TO KEEP UP TEMP RANGE FROM 100 TO 248 DEGREE.IT WILL DO THE HIGHEST TEMP REALLY FAST AND IT KEEPS UP WITH THE CLEANER.IM MAINLY A DECK GUY.PRESSURE WISE ITS SUPPOSE TO HANDLE 4000 PSI UP TO 8GPMS

 

[Douglas Hicks]

Schedule 40 fittings are good for 150 PSI working pressure. Schedule 80 is good for more, but I don't remember what. Some wog valves are rated to 600 psi. I thought all coils were supposed to be schedule 80

Douglas Hicks
General Fire Equipment Co of Eastern Oregon, Inc

 

[Dave Olson]

The stand alone boiler (hot box) that we have on our main unit has 400 feet of 3/4" schedule 80 pipe. It is rated for 3000 psi and the burner is rated at 980,000 Btu.

Dave Olson

 

[steve r]

The stand alone boiler (hot box) that we have on our main unit has 400 feet of 3/4" schedule 80 pipe. It is rated for 3000 psi and the burner is rated at 980,000 Btu.

Dave Olson

thats a nice unit .ya must do a lot of flat work.Im adeck guy.very little use on my box.Do a entrywalk way in with house wash.kinda throw it in if its not a big area.Im not much for the flat work area.Ill leave that to ya flat guys and commercial work.

 

[Navigator7]

The stand alone boiler (hot box) that we have on our main unit has 400 feet of 3/4" schedule 80 pipe. It is rated for 3000 psi and the burner is rated at 980,000 Btu.
Dave Olson

Wow.....980K Btu....is nearly 30 Hp.
Excuse my ignorance......but what is the intent and purpose of a hot box?

Is it used in conjunction with a PW?

Is this a custom application?

I assume the 400' of 3/4" schd 80 is pipe rolled into a coil?

Is it possible a guy could steam piles of sand and gravel with this unit????

 

[steve r]

box

Wow.....980K Btu....is nearly 30 Hp.
Excuse my ignorance......but what is the intent and purpose of a hot box?

Is it used in conjunction with a PW?

Is this a custom application?

I assume the 400' of 3/4" schd 80 is pipe rolled into a coil?

Is it possible a guy could steam piles of sand and gravel with this unit????

my little hot box is for little flat cleaning .i dont do much flat work maybe a sidewalk or driveway .a hot box isnt good for comercial work .plus i use on vinyl when needed .i do decks 99% of the time

 

[Navigator7]

my little hot box is for little flat cleaning .i dont do much flat work maybe a sidewalk or driveway .a hot box isnt good for comercial work .plus i use on vinyl when needed .i do decks 99% of the time

Allow me to make sure I'm not confusing a Hot Box with a steamer.
I've not heard the term before.
I see your nice unit at the start of the thread.
It looks to me to be a Hot/cold unit. Is that the hot box or is something else there I don't recognize?

The pic of the red hot box looked to me as a stand alone unit and I was trying to make the connection to a 30 Hp steamer...or is it hot water.

Is Hot Box slang for a steamer unit or something different?

 

[steve r]

box

Allow me to make sure I'm not confusing a Hot Box with a steamer.
I've not heard the term before.
I see your nice unit at the start of the thread.
It looks to me to be a Hot/cold unit. Is that the hot box or is something else there I don't recognize?

The pic of the red hot box looked to me as a stand alone unit and I was trying to make the connection to a 30 Hp steamer...or is it hot water.

Is Hot Box slang for a steamer unit or something different?

the little box attatches to my cold water unit .it wont work witout a pressure washer .when i pull the trigger it kicks on for instant hot.runs on diesel .range from 4 gpms to 10 gpms .water temp goes from 100 to 245 gegree.it has a beckett burner.its all i need fr what i do

 

[Navigator7]

the little box attatches to my cold water unit .it wont work witout a pressure washer .when i pull the trigger it kicks on for instant hot.runs on diesel .range from 4 gpms to 10 gpms .water temp goes from 100 to 245 gegree.it has a beckett burner.its all i need fr what i do

OIC....A hot box is a stand alone unit that can make a cold PW into a hot PW...ergo...Hot Box! (Somebody used ergo in another forum, so I thought I'd try it. ;-))

I know several in Alaska that have steam thawing businesses. One fella has a boiler that puts out 1 million btu's and he uses for all sorts of things.....but one of his services service caught my eye.

In the fall he steams ready mix sand and rock piles for a few days. It seems the rock stays hot all winter.....In fact the loader guy report it's still hot in June as they get further into the pile.

This could be of value where I live.

 

[Dave Olson]

Here are a few more pics of our unit.

The “hot boxâ€￾ name refers to a stand-alone or add-on device to heat water coming from a pressure washer. A hot water pressure washer has an attached burner that is incorporated into the pump cycles directly.

Old habits die-hard! Most contactors use skid type hot pressure washers. We have always had a stand-alone boiler to heat our water. The one in the picture was installed in 2001 and operates on Lp. Since we are located in a cold climate and operate all year round, we need a boiler that can deliver a high temperature rise. The formula that I’ve used is 100,000 Btu is required to heat a one-gallon per minute flow 100 degrees F. Our current max volume is 10.2 gpm. If our inbound water is 35 degrees (winter time) we must reduce our volume to reach water temperatures of 200 degrees.

When running hot we generally operate in the 180-220 degree range. This boiler is steam capable. I’ve taken it up to 350 degrees for a few hours once, but didn’t feel it was safe doing so! Our hoses are only rated at 250!

I suppose you could steam piles of sand or gravel but you sure would need a lot of water & fuel!

Dave Olson

 

[Navigator7]

Here are a few more pics of our unit.

The “hot boxâ€￾ name refers to a stand-alone or add-on device to heat water coming from a pressure washer. A hot water pressure washer has an attached burner that is incorporated into the pump cycles directly.

I suppose you could steam piles of sand or gravel but you sure would need a lot of water & fuel!

Dave Olson

First rate! Your equipment looks top dollar. Nice job! Nice equipment!!
Never heard the term before but now I know.

A lot of water and fuel is relative if the service means people are getting tasks done in cold weather when they otherwise would not.

Is the coil schd 80 steel pipe, copper or stainless? The thread got a little sketchy on that.

Is the hot box custom made or did you purchase it?? I've never seen any for sale.

Have you ever considered the idea of a superheater for increasing a steam supply?

It would work kinda like a volume tank or a spare air tank.
Your outbound hot box line plugs into a steam rated pressure vessel, complete with reliefs and a heat source....propane, charcoal, kerosene, diesel etc.

(I think any tank over 5" diameter or 60' of surface area make it fall under ASME making it a live steam vessel and a crushing burden or rules regulations and unprofitable)

The heated coil bypasses a lot of ASME stuff.

 

[Dave Olson]

"Is the coil schd 80 steel pipe, copper or stainless? The thread got a little sketchy on that."

The coil is schedule 80 3/4" steel pipe.

"Is the hot box custom made or did you purchase it?? I've never seen any for sale."

I purchased it from Whitco. They have since gone out of business, but still have a sales office. Here is a link for you to check out. http://www.whitcoinc.com/

You may also want to check out Malsbary Cleaning Systems. We had a 750,000 Btu boiler from these folks prior to the Whitco. They were still in business a few years ago. The number I have for them is 513-563-8284 (Cincinnati, Ohio). They build steam units as well as tank heaters.

Dave Olson

 

[Mark]

In February, 2004 a fire destroyed the Whitco manufacturing facility in Arkansas, suspending all production. Due to the Whitmire family's concern for their employees and distributors, Whitco was sold to Alkota Cleaning Systems. This insured the prompt and relatively seemless continuation of production to meet the needs of Whitco's employees and distributors. Both Alkota and Whitco share many of the same "Old Values" and an unwavering commitment to manufacturing quality products.

Easy Clean Systems distributes the Complete Alkota Product Line
which includes:

Alkota Cleaning Systems
All American Cleaning Systems
Electro-Magic Cleaning Systems
Whitco Cleaning Systems

The heater Dave has is not available but there are
several similar models offered.

Such as the model:
1011-207D0

1011-207D0 Specifications
BURNER Natural Aspirating
FUEL LP Gas
GAS CONSUMPTION 11.3 GPH
COIL 483', 3/4" ID, Schedule 80
LENGTH 36"
WIDTH 30"
HEIGHT 64"
WEIGHT 650 lbs.
TEMPERATURE CONTROL Standard
BTU RATING 1,040,000

Download Water Heater Brochure **Click Here**

Now here is a BIG Water Heater:

 

[north coast]

Mark what other type of burners do you have? We are about to begin building another custom truck here and I would like to look into other burner types. Currently we are using Euro-Tech burners that we converted from 110 V AC to a Becket 12 V DC blower/igniter. I would like to stay with a 12-volt system and continue using diesel fuel. Euro-Tech's are hard to find now, we originally had 20 of them and have since used or sold them but now the only place I can find them at needs a minimum order of 10. Just looking into our options thanks. efisher.jws@covad.net

 

[Dave Olson]

Hello Mark,

Do you know what Alkota is using for the temperature control? One of the major reasons that I chose Whitco is that they use a Kim modulating fuel valve. This control turns the fuel on based on the temperature setting as well as the temperature of the water. It acts much the same as the control on a stovetop in your kitchens gas burners. The Kim gas valve has an 18â€￾ probe and the coil is designed to receive this probe.

The other units that I considered 5-6 years ago, did not have this feature and the fuel was either all the way on or off! The Malsbary that I had for many years also used a modulating fuel valve.

Dave Olson

 

[Mark]

Eric,

We have several burners / water heaters to choose
from, give me a call and we can discuss your needs.

Dave,

Alkota does not use a mudulating gas valve
as standard equipment. However it can probably
be had as an option.

[hello]