Classic edge 750

Classic edge 750 DEFAULT

Behind the control panel, Classic Edge 750; perfect mouse nesting area

central boiler mice

The Good: Central Boiler Classic Edge

Central Boiler Classic Edge 750

central boiler classic edge 750

Based on the research done before purchase, and experience since, I think the efficiency of the Central Boiler Classic Edge 750 is top shelf.  Best of the best, I don’t know, but damn good.  To heat our ~2,000 square foot home we burn about six full cords of hardwood firewood per heating season.  The cost savings over propane are 2/3rds, and that’s if we buy the firewood as opposed to putting it up ourselves.  This year we are on track to provide all of our own firewood, which means no cash outlay.  That’s why we bought the outdoor wood boiler in the first place.  I usually load it twice a day, once shortly after waking, and once after dinner.  If I’m going to be absent I can load it up fully for at least a 24 hour burn.  Big contributors to its efficiency in my opinion are the “reaction chamber,” where the “wood gasification” burn takes place, and its ability to idle for long periods without consuming much fuel wood.  Also, the Classic Edge has been reliable, which is to say that it runs when I need it to run.

The Bad: Central Boiler Classic Edge

central boiler classic edge 750 door seal

The firebox door seal has been a niggling issue for quite some time.  The problem is that once you have any sort of leak at all, smoke from the firebox escapes through the leak, and worse yet, creosote starts to build up.  Of course the creosote worsens the leak, and you are off to the races.  The seal is silicon and not easy to clean.  The hinges are adjustable for seal pressure, as is the “cam latch,” unfortunately I’ve not been able to stop the leaks. For example, if you want more pressure at the upper left you can do that, but then the lower right corner of the door wants to push out, creating a leak there. Admittedly I’m not a Central Boiler technician, it’s highly likely I’m doing something wrong, but the door seal has been a pain in the ass. I’ll limp through this heating season and replace the seal when I have more time on my hands; the part is on hand.

The Ugly: Central Boiler Classic Edge

Recently I began to get an intermittent “d.o.” indication on the control panel, which stands for firebox “door open.” I thought maybe I could live with this, but no, the switch is an input to the blower control, which is to say the outdoor wood boiler will not operate properly without an intact “door open” circuit. There is a small switch near the cam latch; I removed and checked the switch, it’s working as designed.  Called Central Boiler, they instructed me to have a look behind the control panel, which is accessed by removing to screws and loosing to screws on the hinge side. Ugghhh, “Houston, we have a problem.”

central boiler mice

Let me count the ways.  1) This product is intended to be outdoors, i.e. it is commonly referred to as an “outdoor wood boiler;” 2) it provides heat, which at least implies that it is intended to operate in the winter months; and 3) it is fired by wood, which leads me to believe that most Central Boiler wood-fired products find homes in rural or at least semi-rural settings.  What else finds home in rural or semi-rural settings I ask? Mice!!! And lots of them. And in the winter months mice look for cosy little homes wherever they can find them, by coming into your house, finding a warm spot under the hood of your car or truck, under the engine cover of the Wood-Mizer, under the fuel tank on the wood splitter (another recent occurrence), or in your outdoor wood boiler.  That space we are looking at in the picture above is maybe 3 inches deep with the door closed, a foot high more or less, and about 8 inches wide.  The ENTIRE control system comes together in that space.  If there is one place on the Central Boiler Classic Edge where you can’t have a mouse infestation the space behind the control panel is it.  You’d think it was rocket science.  Central Boiler has been in business for over 35 years, they should have a library of protocols for preventing damage from mice.

Okay though, I get it, we’re in business, too, and it’s not perfection.  Incidents such as these can actually improve customer satisfaction, IF you take care of the customer.  Alas, no. It’s not covered by warranty, and I can’t even get my rep to answer the phone anymore. So indeed, I am presently an unhappy camper.

Note to Self: Settle Down and Move On

Okay self, let’s talk about what needs to be done to rectify the situation. First up, some sort of temporary fix to get the Classic Edge back up and running.  The first step I took was to clean up the mess as best I could with some brushes and the shop vac.  The cause of the problem became readily apparent.

central boiler classic edge door open

A pin in a connector within the door open wiring harness had been corroded away; hence the persistent “d.o.” indication.  Obviously this is the “presenting problem,” the one you notice, which is not the same thing as the root cause problem, which is mouse infestation.  But, we need to correct the presenting problem to get the Central Boiler back in action.  The cost of propane is simply too high; I don’t want to afford to wait until permanent corrective actions can be taken.  All of the connectors in view are suspect though, which means that all harnesses going to and from the control panel and the various sensors and active components are suspect.  More on that in a bit.

central boiler door open interim solution

Yes, it’s ugly I know, but it should get us through the season. I detached the panel through which the connectors pass, cut the wire on the other side of the connector, pulled it up past the connector and plate, and spliced it to the wire from the control panel.  Cheap in every sense of the word, but effective.  The interim solution only needs to carry us through 3 or 4 more months.  Back in action.

Permanent Corrective Actions – Classic Edge Door Seal

central boiler classic edge door seal kit

The door seal is easy, relatively speaking; out with the old, in with the new.  Classic Edge Firebox Door Seal Kit p/n 2500178. I could probably take this on during the heating season, if we get another little warm spell. I’m guessing I won’t, but it’s a possibility.

Permanent Corrective Actions – Classic Edge Control System

Frankly, I don’t even like thinking about how much work this is going to be.  At first glance it seems to me that the roof panel on the outdoor wood boiler will need to be removed, as will the front and the right side, as you are facing the machine.

The first two harnesses pictured, the top row if you are looking at the images in gallery form, are both required to repair the “presenting problem” of the door open indication.  The other two harnesses are suspect due to the damage caused by the mice, both their urine and their gnawing on wires.

Central Boiler Classic Edge Repairs

There is a lot of work to do.  Replacing the door seal, and replacing the entire set of wiring harnesses behind the control boxes and within the body of the boiler.  And, since apparently Central Boiler hasn’t done it, I will need to find a way to prevent future mouse infestations, especially, but not only, behind the control box, where all of the harnesses come together and are most susceptible to damage.  When I get to that I intend to document the work here on the blog. The costs savings accruing to us through use of the Central Boiler Classic Edge 750 are significant, and therefore I will continue to fight the good fight, bulletproofing this machine myself if I have to, which evidently I do.

See other posts I’ve written related to this subject:

Sours: https://primalwoods.com/central-boiler-good-bad-ugly/

Central Boiler Classic Edge Wood Furnace Overview

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Write a Review

"Nothing but junk!"

Very Unsatisfied

The local dealer swore up and down in 2015 that the edge classic 750 was top of the line. This thing has been nothing but trouble since we got it! Will never stay lit whatsoever. Even after cleaning it like it's supposed to be. Contacted dealer and he swears theres nothing wrong with it. It doesn't get enough air to it at all. We will never own another one ever!

"problems with cleaning and keeping air chambers open"

Very Unsatisfied

the first ce550 models were updated the following year after I purchased mine.. the way it was originally constructed made it extremely difficult and time consuming to keep the ashes out of the air chamber. In the middle of winter i have to shut down the stove, let it cool down, and then take the floor out in order to remove the rear panels, allowing me to clean the air chambers. This is only done by climbing into the door opening. This takes me 5 to 6 hours to complete. The updated version has a rear door opening to clean the air chambers. CE calls my stove "low maintenance!" Why does central boiler refuse to provide a reasonable upgrade when their engineers made such a grievous mistake?

"Awful"

Very Unsatisfied

It is 0 degrees f at 9 pm on January 30, 2019. I have just come back inside from once again trying to remedy the fact that my new-in-October Classic Edge 550 $12000 (installed) wood boiler is once again not heating its water enough to keep my oil boiler from firing up. This unit, purported to be adequate to heat a much larger house, consistently fails to adequately burn wood that has been seasoned 2 years and kept in a dry shed. The dealer is apparently not competent to service it keeps offering possible reasons for the lack of functionality. After several air and timing adjustments, after keeping religiously to the cleaning requirements, and using wood as prescribed, there can be only one answer; this product is awful, and Central Boiler has no customer service, no quality concern, and a poor product. Keep your conventional furnace or boiler. This product is Garbage.

"Junk!!!"

Very Unsatisfied

The central boiler should e ashamed of themselves for putting a product like my 750 edge classic.!! I am a disabled veteran with a limited income and have close to $13,000 invested in a stove and piping that was supposed to be able to heat my house and pole barn with plenty of BTU's to spare! not!!!! Works great when it is 50 degrees outside as soon as it gets cold I can't keep my water temperature up. I go through tons of wood (yes seasoned and dry). I have to shut it down to disassemble the firebox to clean where the worthless chains are supposed to keep clear (which I shake at least twice a day). I've called the company 3 times only to treated like an incompetent idiot and give their old faithful lack of insulation speech! Just man up and admit you have designed built and sold a piece of junk!!! Which is why you no longer sell this model!!!

"Very Efficient Furnace"

Very Satisfied

***Learning curve to this unit*** 750 is very efficient and easy to use. This is the first wood boiler that I've owned. That must be the reason I can effectively use it better than the guys with the older units. I can see where they would have trouble learning the gasser units. Its a little more than cutting a log and burning green or junk wood. The wood for this unit has to be seasoned for it to operate correctly, I cut my wood a year beforehand to start drying. Very minimal wood used compared to the older units I've seen. All the old timers need to find one of these units and watch someone operate before writing it off. These only smoke very little when loading wood. Once the reaction chamber gets hot it will burn the smoke completely. I keep a good coal bed, run the cleaning rod thru the bottom 5-6 times and never have any trouble with fire restarting during the night. If you read the instructions on these units, it will operate exactly how it needs to perform.

Other Classic Edge Reviews

A post on hearth.com from a homeowner asking for opinions about the Classic Edge found many replies from people with complaints about the unit, including how to clean it. Most of these people, however, have only seen it and do not own one. On arboristsite.com, a member who saw a display of the Classic Edge said it looked like a good unit. Replies included another member who'd seen a display at a fair and agreed that the unit seemed good, but again there were no comments from anyone who actually owned one.

Classic Edge Warranty

Product registration is required for maximum warranty coverage. The warranty for the Central Boiler Classic Edge wood furnace is comprised of the following:

  • 1-year manufacturer defect & workmanship warranty

An optional 25-Year Warranty is available if a Limited Warranty Registration Form is completed and sent to Central Boiler within ten (10) days of the original owner taking possession of the furnace AND provided that one thermostatic valve per set of supply and return lines is installed in the system.

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Sours: https://www.furnacecompare.com/mfr/central-boiler/wood-furnaces/classic-edge/
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CLASSIC EDGE 750 Titanium HD Series - Specifications

Firebox Volume - 24 cu ft

Firebox Dimensions - 37"L x 44"H x 26"W

Door - 21"W x 25"H

Ash Cleanout Door - 19"W x 11"H

Water Capacity - 330 gal.

Weight - 2,018 lbs

Supply/Return Ports - 1 set of 1-1/4" supply and return ports, 2 sets of 3/4" supply and return ports

Bypass Door and Alarm - Standard

Manufacturer's Rated Heat Output Capacity** - 240,000 Btu/hr

Included with outdoor furnace - Water Test Kit, Cleaning Rod, Scraper Tool, Ground Rod Kit and two 4-foot chimney sections

NOTE: Specifications are subject to change without notice.

**Based on EPA qualifying test.

Constructed of titanium-enhanced stainless steel, the firebox has superior corrosion resistance and excellent heat transfer performance. This allows loading the firebox for longer burn times (in some cases up to 48 hours or more*) and burning some wood that is less than perfectly seasoned.

Central Boiler recommends burning seasoned wood when possible because dry wood burns better and provides more energy for heating your home. You'll burn less wood, saving you more money and time. That is, after all, what you want your outdoor furnace to do. *Actual burn times vary based on wood types, moisture content, heat load and ambient temperature.

Sours: https://seitzsales.com/classic-edge
Central Boiler Classic Edge 750 Start-up Year 2 - Primal Woods

CB750 said:

Hey Guys I'm looking for some answers to some issues I've had with my CB 750 pretty much since installation a year ago.

The primary issue is that when properly working, the unit will not warm my house above 74 degrees. Hot water reaches the radiator (boiler is set at 190) thru the supply but the return is luke warm. The dealer installed the radiator between the furnace air return and the furnace itself NOT above the A coil. Could this be the problem? Our register temps are only in the low 90s so where is all that heat going? My dealer insists that the radiator location is not the problem and that it is plenty big enough to handle our house size (3,000 sq. ft both floors). I've inspected all the ductwork and found no holes and sealed up all the joints as best as possible.

The secondary issue is that the boiler doesn't function very well when the bypass is shut (handle pulled toward the door) but does fine when it's open (pushed toward the back). It runs constantly and struggles to keep up. Most nights when I go out in the middle of the night the water temp is in the 150s. I've cleaned it out as best as I know how. Cleaned reaction chamber, the chains in the back, and removed the two metal plates in the back. The only thing I haven't cleaned are the holes in the sides of the furnace inside the firebox, not sure how to thoroughly clean those.

I'm burning mostly split ash that has been dead but still standing.

I really want to like my 750 but I'm spending more time trying to get it to function properly than I am cutting wood.

Any help would be greatly appreciated.

Click to expand...


Hi CB 750,
Welcome to Central Boiler Neverland, where once the product has been sold, the consumer finds himself alone in the void that is left after your check clears. Aside from that, is your "furnace" a pressurized system with the OWB plumbed directly into it? Or is the hot water from the OWB just passing through a separate 'radiator'? I have found that the two systems should not be plumbed together and that a heat exchanger should be used to heat the existing HVAC system with the hot water from outside and not be plumbed directly into the existing system.
Another "dealer'' problem I had was the undersized circulator pump that was installed on my Eclassic 2400, which led to not enough water circulating through the OWB itself leading to flame impingement (LEAKS) in the firebox itself and not enough heat in the house. How far away from your interior furnace is your OWB? The height above or more importantly below is also important.
As far as 150 degrees, Stee is on point with the wet wood. The gassifiers will only gassify if the smoke is dry meaning the wood not only has to be seasoned but it must also be dry.
Lots of possibilities but, lots of very knowledgeable folks that I have learned from here.

 

Sours: https://www.hearth.com/talk/threads/cb-classic-edge-750-issues.157956/

750 classic edge

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Classic Edge Titanium HDX models are the perfect combination of value and performance, with the same quality, construction and performance as other Central Boiler models. It’s an alternative that eliminates the problems and increases the advantages of wood heat. It’s a choice that can improve your family’s living environment and standard of living while eliminating the fire hazards and time-consuming chore of tending a traditional wood stove.

The Central Boiler Classic Edge Titanium HDX Outdoor Wood Furnace can heat 100% of your home and hot water. By virtually eliminating your heating costs, the Classic Edge Titanium HDX can often pay for itself in the first few years of use. Over a ten year period, a homeowner or business may save $20,000 to $100,000 or more in heating costs.

The Classic Edge Titanium HDX is beneficial for the environment because burning wood is natural. Wood is a totally renewable resource and, when burned, results in no net increases in carbon dioxide. On the other hand, fossil fuels when burned, release carbon dioxide which would otherwise be trapped in the earth. The burning of fossil fuels causes a net increase in carbon dioxide which is believed to be responsible for the heat trapping greenhouse effect.


Classic Edge Titanium 360 HDX

Furnace: $9,525.00

Color Options: Charcoal, Green, Taupe & Copper

The Classic Edge 360 HDX is EPA 2020 Step 2 Certified.

Video – How it Works Classic Edge Titanium HDX

Video – Comparison Classic Titanium vs Classic Edge Titanium HDX

Specifications:

Weight = 1,365 lbs.
Water Capacity = 150 gallon
Maximum BTU – 150,000 Btu/hr

Manufacturer’s Rated Heat Output Capacity** – 150,000 Btu/hr

Overall Efficiency (LHV) – 88.4%*
Overall Efficiency (HHV) – 82.2%*

Included with outdoor furnace – Water Test Kit, Cleaning Rod, Scraper Tool, Ground Rod Kit and two 4-foot chimney sections

NOTE: Specifications are subject to change without notice.

* Efficiencies are determined under the same test conditions using higher heating value, lower heating value and overall efficiency. **Based on EPA qualifying test.

Remarks: Plus in-bound freight – MN to OH.


Classic Edge Titanium 560 HDX

Furnace: $11,350.00

Color Options: Charcoal, Green, Taupe & Copper

The Classic Edge 560 HDX is EPA 2020 Step 2 Certified.

Video – How it Works Classic Edge Titanium HDX

Video – Comparison Classic Titanium vs Classic Edge Titanium HDX

Specifications:

Weight = 1,668 lbs.
Water Capacity = 205 gallon
Maximum BTU = 200,000 Btu/hr

Manufacturer’s Rated Heat Output Capacity** – 200,000 Btu/hr

Overall Efficiency (LHV) – 90.2%*
Overall Efficiency (HHV) – 83.8%*

Included with outdoor furnace – Water Test Kit, Cleaning Rod, Scraper Tool, Ground Rod Kit and two 4-foot chimney sections

NOTE: Specifications are subject to change without notice.

* Efficiencies are determined under the same test conditions using higher heating value, lower heating value and overall efficiency. **Based on EPA qualifying test.

Remarks: Plus in-bound freight. MN to OH.


Classic Edge Titanium 760 HDX

Furnace: $14,190.00

Color Options: Charcoal, Green, Taupe & Copper

The Classic Edge 760 HDX is EPA 2020 Step 2 Certified.

Video – How it Works Classic Edge Titanium HDX

Video – Comparison Classic Titanium vs Classic Edge Titanium HDX

Specifications:

Weight = 2,036 lbs.
Water Capacity = 330 gallon
Maximum BTU = 245,000 Btu/hr

Manufacturer’s Rated Heat Output Capacity** – 245,000 Btu/hr

Overall Efficiency (LHV) – 89.8%*
Overall Efficiency (HHV) – 83.4%*

Included with Outdoor Furnace – Water Test Kit, Cleaning Rod, Scraper Tool, Ground Rod Kit and two 4-foot chimney sections

NOTE: Specifications are subject to change without notice.

*Efficiencies are determined under the same test conditions using higher heating value, lower heating value and overall efficiency. **Based on EPA qualifying test.

Remarks: Plus in-bound freight. MN to OH.


Classic Edge Titanium 960 HDX

Furnace: $19,650.00

Color Options: Charcoal, Green, Taupe & Copper

*In the U.S., the Classic Edge 960 is currently for non-residential applications only.

Video – How it Works Classic Edge Titanium HDX

Video – Comparison Classic Titanium vs Classic Edge Titanium HDX

Specifications:

Weight = 2,714
Water Capacity = 420 gallon
Maximum BTU = 400,000 Btu/hr

Manufacturer’s Rated Heat Output Capacity** – 400,000 Btu/hr

Overall Efficiency (LHV) – 92.1%*
Overall Efficiency (HHV) – 85.6%*

Included with outdoor furnace – Water Test Kit, Cleaning Rod, Scraper Tool, Ground Rod Kit and two 4-foot chimney sections

NOTE: Specifications are subject to change without notice.

Remarks: Plus in-bound freight. MN to OH.

Sours: https://classiccomfortohio.com/products/classic-edge-stainless-steel/
Comparing the Classic to the Classic Edge HDX - Central Boiler outdoor furnaces

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