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Wood

MINI-CADDY

PF01302

Heating area 500 - 1,500 Ft2
Size 29 7/8" W X 31 1/8" D X 46 1/2" H
Maximum log length 20"
Average particulate emissions rate (1) (2) 0.841 lb/mmBTU (0.362 g/MJ)

From USD $2,999.00* MSRP

*The MSRP price refers to the wood furnace configuration including the blower. Consult your dealer for a price that includes more options. Taxes, freight, installation and ducts not included.

  • Description
  • Options and Accessories
  • Specs / Manual
  • Maintenance instructions
  • Tech support

Description

A star is reborn

The newly redesigned Mini-Caddy combines PSG’s renowned clean-burning combustion technology with leading edge electronics to deliver outstanding efficiency and operational convenience. This compact furnace is the perfect choice for smaller homes and cottages.

Enhancing the user experience

The Mini-Caddy offers all the charm and advantages of a conventional wood stove—plus newly enhanced electronics and design features for even greater ease of use. Blower speed and plenum temperature are now automatically managed by an integrated PC board and RTD probe, boosting user comfort and optimizing efficiency for fuel savings of up to 30%. And the intuitive touchscreen LCD display makes input and output control a breeze.

More installation flexibility than ever

Not only is the redesigned Mini-Caddy a delight to use, it’s also a pleasure to install. Connecting the furnace to ductwork is easier than ever thanks to the optional rectangular return air plenum available on top or on either side of the furnace. What’s more, the blower assembly comes with a prewired main power board for plug and play convenience.

Peace of mind

The Mini-Caddy is a great-looking heating appliance you’ll be proud to display in full view. And like all Caddy wood-burning appliances, it’s also available in a wood/electric combo version—a dual heat source that provides extra peace of mind for you and your family.

Alternate source of heat

With Caddy series furnaces, you’ll always have an alternate source of heat to ensure the comfort and safety of your family. The Mini-Caddy comes in two different configurations: wood-only or wood+electric combo furnace.

Wood

Wood

This furnace can be installed as a wood-only unit. Blower box and fan limit kit required for this configuration.

Wood Electric

Combined Wood + Electric

This furnace can be installed as a wood+electric combo unit to ensure your central heating keeps running even when you’re not there to add more firewood. Electric element (fan limit kit included) required for this configuration.

August Promotion

Offer valid from August 1st to 31st, 2017

Get a $150 manufacturer’s mail-in rebate with the purchase of a Mini-Caddy wood furnace (PF01302)

Claim promotion*  >

*Before October 31st, 2017

96% of the last 30 homeowners who have registered their warranty are satisfied with this product.

High resolution images

Testimonial

Good heat, beautiful furnace. With the front window, the furnace gives off a nice heat and it created a great atmosphere. When loading the furnace, after 15 hours, there is still 2 inches embers inside.

Willie – Saint-René, Canada

Options and Accessories

Required accessories

A - Wood Wood

MINI-CADDY BLOWER ASSEMBLY

MINI-CADDY BLOWER ASSEMBLY - PA08521
Download the owner's manual >

From USD $700.00 MSRP

B - Wood Electric Combined Wood + Electric

11.25 kW ELECTRICAL ELEMENT

11.25 kW ELECTRICAL ELEMENT - PA08005

From USD $800.00 MSRP

MINI-CADDY BLOWER ASSEMBLY

MINI-CADDY BLOWER ASSEMBLY - PA08521
Download the owner's manual >

From USD $700.00 MSRP

Options

TOP AIR RETURN PLENUM KIT

TOP AIR RETURN PLENUM KIT - PA08508

From USD $150.00 MSRP

Accessories

Find a complete line of accessories to help you get the maximum satisfaction from your heating appliance. For maintenance products, accessories, options or any other related products, SBI Heating Accessories is the ideal choice!

See all >

Venting products

Find a complete range of venting products for different fuel type meeting all applicable standards in the industry and a huge variety of accessories allowing in a simple, effective, and safe way the installation of heating appliances. In addition, for each venting product category, you can get kits containing all the necessary parts to complete your project.

See all >

Specs / Manual

Appliance performance (3)

Fuel type Dry cordwood
Recommended heating area (sq.ft.) () 500 - 1,500
Firebox volume (cu. ft.) 2.3
Maximum burn time () 13 h
Maximum input capacity (dry cordwood) (4) 198,000 BTU
Overall heat output rate (min. to max.) (5) 11,319 BTU/h (3.3 kW) to 37,053 BTU/h (10.8 kW)
Average overall efficiency (min. to max.) (6) 75.70% (HHV) (7) 81.10% (LHV) (8)
Delivered heat output rate (min. to max.) (9) 10,849 BTU/h (3.2 kW) to 36,429 BTU/h (10.7 kW)
Average delivered efficiency (min. to max.) (10) 70.60% (HHV) (7) 77.20% (LHV) (8)
Optimum efficiency (11) 85.10%
Average particulate emissions rate (1) (2) 0.841 lb/mmBTU (0.362 g/MJ)
Average CO (12) 15.61 lb/mmBTU (6.72 g/MJ)

(1) Based on delivered heat output.

(2) This appliance is officially tested and certified by an independent agency.

(3) Values are as measured per CSA B415.1-10, except for the recommended heating area, firebox volume, maximum burn time and maximum input capacity. Performances based on a fuel load prescribed by the standard at 10 lb/ft³ and with a moisture content between 18% and 28%.

(4) Input value at 10 lb/ft³ fuel loading density and dry energy value of 8,600 BTU/lb.

(5) Overall : Radiated and delivered heat together at 10 lb/ft³ fuel loading density over one total burn cycle.

(6) Efficiency based on radiated and delivered heat when allowing cycling from high to low burn to simulate thermostat demand.

(7) Higher Heating Value of the fuel.

(8) Lower Heating Value of the fuel.

(9) Delivered: Remotely provided to other rooms through ducting at 10 lb/ft³ fuel loading density over one total burn cycle.

(10) Efficiency based on delivered heat when allowing cycling from high to low burn to simulate thermostat demand.

(11) Optimum overall efficiency at a specific burn rate (LHV).

(12) Carbon monoxyde.

General features

Adjustable threaded legs Yes
Stainless-steel secondary-air system improving gas combustion Yes
Easy-to-access ash drawer Yes
Average electrical power consumption 760 Wh
Automatic or manual adjustment of combustion air supply Yes
Maximum log length 20"
Log positioning Over width
Chimney diameter 6"
Flue outlet diameter 6"
Type of chimney CAN/ULC S629, UL 103 HT (2100 °F)
Baffle type C-Cast
Approved for a mobile home installation No
Shipping Weight 470 lb (213 kg)
Door type Single, glass with cast iron frame
Glass type Ceramic glass
Glass surface – dimensions (Width X Height) 12 1/2" X 10 1/8"
Glass air-wash system Yes
Blower (hp / speed / CFM) 1/4 / 4 / 1,400
Filter – dimensions (Width X Height X Depth) 15" X 20" X 1"
Overall dimension (Height) 46 1/2"
Overall dimension (Width) 29 7/8"
Overall dimension (Depth) 31 1/8"
Door opening – dimension (Height) 9 7/8"
Door opening - dimension (Width) 13 3/4"
Firebox – dimension (Height) 14 1/8"
Firebox – dimension (Width) 13 3/4"
Firebox – dimension (Depth) 19 3/8"
Firebox lined with refractory bricks for better heat distribution Yes
Steel thickness – body 3/16"
Steel thickness – top 1/4"
Centre line of flue outlet to the side 11 5/8"
Centre line of flue outlet to the floor 40 5/8"
Air return plenum – dimension (Depth or Height) 16 7/8"
Air return plenum – dimension (Width) 20 1/4"
Hot air plenum – dimension (Depth or Height) 20"
Hot air plenum – dimension (Width) 20"
Electric element – location Right or Left
Electric element – recommended (maximum output) 11.25 kW
Electric element – recommended clearance for maintenance 24"
USA standard (emissions) EPA (CSA B415.1-10)
Canadian Standard (emissions) CSA B415.1-10
USA standard (safety) UL 391, UL 1995
Canadian standard (safety) CSA B366.1, CSA C22.2 no 236
Tested and listed as per applicable standards By an accredited laboratory (CAN/USA)
Warranty Limited lifetime
Minimum clearances to combustibles*
(Data expressed in inches. 1 inch = 25.4 mm)
Canada USA
Clearance – back wall 24" 24"
Clearance – side wall 8"
Clearance – opposite side wall 24"
Clearance – recommended for maintenance on option side 24"
Clearance – ducts <6'=3" ; >6'=0"
Clearance – front 48"

* The information given on the certification label affixed to the appliance always overrides the information published in any other media (owner's manual, catalogues, flyers, magazines and/or web sites).

** Some appliances have been tested with a low ceiling. If necessary, consult the owner's manual for information on these clearances to combustible materials.

Maintenance instructions

How do I reduce the amount of charcoal my heater produces?

Appliances that are EPA or CSAB415.1 certified tend to create larger coal beds due to their higher efficiency. This can be controlled by the way you burn your appliance. After an overnight burn, you may have a more significant coal bed. Simply rake the coal bed forward and add a smaller piece of wood on top. Burn the appliance on a higher setting (air control fully open). This will pull more primary air into the firebox and will increase draft. The coal bed will burn down with the log. You may have to repeat this operation a couple of times before the coals are reduced. You are then ready to load your appliance with a larger fuel load.

Tech support

Do I need an EPA certified or CSAB415.1-10 certified heater?

You first have to identify what your needs are. If you are looking for ambiance, a temporary heat source in a cottage or a camp, or a simple back-up heat source in case of power failure, you do not necessarily need to invest more money in order to buy an EPA or CSAB415.1-10 certified wood heater. However, if your goal is to heat on a regular basis, the extra dollars will prove to be a good investment. Furthermore, it must be noted that certified heaters release up to 90% less particles into the atmosphere, which makes wood a renewable and clean source of heat. As a result, if the style and size of the heater you are looking for is available in a certified version, it is highly recommended that you invest in this advanced combustion technology. You will help the environment and reduce your wood consumption by up to 30%.

NOTE: If you live in the United Sates, British Columbia, Ontario, Quebec, Nova Scotia, New Brunswick or Newfoundland, EPA certified wood heaters are mandatory. Exceptions apply for certain categories of products, such as decorative fireplaces. Certain municipalities may also have by-laws that require the installation of an EPA or CSAB415.1-10 wood heater, even though the province does not have an official regulation on wood heating. It must also be noted that in Canada, the CSAB415.1-10 Standard is equivalent to the EPA Standard. A wood heater that meets this Standard will generally comply with the regulation in place.


Why is the efficiency as per the EPA’s test data smaller than the publicized optimum efficiency?

EPA refers to the CSAB415.1-10 standard for the calculation of the appliance’s efficiency. The efficiency reported as per EPA’s directives consists of an average between four different burn rates, ranging from the lowest burn rate (air intake completely closed) to the highest burn rate (air intake completely open). The optimum efficiency that we publicize is the efficiency obtained according to the same test data, but for the low burn rate only. This efficiency is more realistic for a majority of users whose heating needs require that the unit be used to maximize burn times.

Why is the BTU according to EPA test data smaller than the one advertised?

 

You will notice a difference between the BTU output as per the EPA’s test data and what is advertised on our web site and/or product literature. The maximum BTU output we advertise is what will be obtained with a full load of seasoned cordwood inserted inside the firebox. The EPA output, on the other hand, is what has been obtained during emissions testing. The EPA test procedure requires that a special type of wood is used and positioned inside the firebox in a manner that does not represent the way the firebox volume would normally be utilized using seasoned cordwood. The EPA test load is typically much smaller. Hence, the BTU as per the EPA’s test data is reduced. The BTU output that should be considered by a normal user is the one we advertise for seasoned cordwood.

 

Can I install an EPA or CSAB415.1-10 certified heater on an 8-inch chimney?

EPA or CSAB415.1-10 certified heaters function best on a 6-inch chimney (interior diameter). The problem with an 8-inch chimney is that the appliance may struggle to heat-up the air volume contained inside the chimney. A hot chimney is required to create enough draft. Poor draft will inevitably lead to poor combustion, which will cause smoke roll backs, a dirty glass, lack of heat, and a large quantity of unburned fuel inside the firebox. It is therefore highly recommended installing a 6-inch liner inside the 8-inch chimney. This liner may be rigid or flexible.

Is it recommended to keep the wood furnace's blower running continuously during winter in order to maintain a more even temperature throughout the house?

Indeed, installers often recommend this practice for oil, gas or electric central heating systems. However, it is definitely not recommended for a solid fuel fired furnace.

The heat generated by the wood furnace differs from other combustibles. As the wood load burns, the temperature varies lots based on the different stages of combustion. The temperature of the combustion gases must remain above the condensation point at all times in order to avoid the formation of creosote. The fan limit control will turn the blower off before the gases’ temperature drops under the condensation point.

In the case of a high efficiency furnace, stopping the blower will also help in keeping the firebox temperatures high enough for secondary combustion to take place. This is essential if you wish to have a clean burn and maximize the appliance’s efficiency.

Where on the hot air plenum of my wood furnace can I install the fan limit control?

The cold air forced through the furnace by the blower circulates around the firebox and is deflected towards the heat exchangers in order to transfer as much heat as possible. The hot air will then be distributed throughout the house.

The temperature inside the plenum will vary a lot from one spot to the other when the blower is running. The fan limit settings are determined in our factory such that the blower turns on when the temperature is sufficient to obtain the best heating efficiency and to turn off before the combustion gases cool down to the point where they could condense.

The proper position of the fan limit control is mentioned in all our manuals. The position of the fan limit control is of prime importance to insure the proper performance of the furnace.

Can I use my wood furnace during a power failure?

A wood furnace can be used in the case of a power failure without risking damaging the unit. The conception of the wood furnace is very similar to that of a wood stove. It is tested to withstand the intense heat of a wood fire, even if the distribution blower is not functioning due to the absence of electric current. The furnace’s efficiency will however be greatly reduced. Hot air will rise by gravity into the ductwork, but it will not be pushed into the rooms in an effective manner. In most installations, hot air circulating by gravity into the ductwork will be sufficient to keep the house warm enough to live in.

Should we install a barometric damper (draft regulator) on the exhaust pipe of a wood furnace?

In the case of older, conventional furnaces, the flame can easily reach the heat exchangers. When the installation or draft adjustment is inadequate, this tends to favor creosote build-up, which can be set on fire. Therefore, we recommend the installation of a barometric damper on this type of wood furnace.

For high efficiency furnaces (Mini-Caddy, Caddy, Max Caddy), the secondary combustion ensures that creosote is usually not a problem. The configuration of the firebox is such that the flame cannot travel to the heat exchangers. We do not supply any barometric damper with the furnaces for these reasons. However, a barometric damper is recommended in the case of excessive draft. Excessive draft occurs when combustion cannot be slowed down by closing the primary air inlet.

What will happen if there is a power outage and my wood furnace is in the middle of a combustion cycle?

It is important to note that the safety standard requires the simulation of a power outage and that the clearances stated on the unit’s certification plate reflect this abnormal situation.

A wood furnace can be used temporarily without electricity, taking into account the following guidelines:
#1- Remove the access panel to the fan in order to favor a natural circulation through the hot air distribution ducts.
#2- Manually position the air control plate slightly open (max 1/16"). An opening of only 1/8" is equivalent to a high intensity fire. Frequent monitoring is recommended to ensure that the furnace temperature is under control.
#3- Do not use more than 50% of the firebox volume. It is best to use a smaller amount of wood and reload more frequently to avoid the risk of overheating.

Why does the electric unit overheat and trigger the manual reset thermodisc.

Possible causes are the following:
  1. The air filters are clogged or very dirty.
  2. The blower does not start (the first sequencer does not close or the motor is defective).
  3. The cold air return volume is not sufficient.
  4. There is excessive static pressure (the distribution duct is too small or there are not enough outlets).
  5. The heat sensor is defective (rare).
  6. The insulation between the cold air return cabinet and the air distribution cabinet is cut too short and restricts or diverts the air flow at the exit of the electric element, thus creating artificial overheat (rare).

Why can’t my Max Caddy heat my house when my old 150,000 BTU oil furnace could do it without any problem?

An oil-fired furnace will reach its maximum heat output within minutes of start-up and keep that pace as long as there is a call for heat. A wood furnace will generate its maximum heat output only at the peak of the combustion cycle. Before that, it needs to build a momentum. Then, the heat output will slowly diminish as the wood load gets consumed.

The performance of the wood furnace will also be affected by the quality of the combustible, which is not as constant and predictable as heating oil. It will vary a lot depending on the density and moisture content. Numerous other factors may also affect the performance of the furnace, such as a poor chimney draft, dirty heat exchangers, low static pressure, etc.

Can the Caddy add-on be installed with an existing propane or natural gas furnace?

The certification allows the installation with the two types of gas. Therefore, the Caddy add-on may be hooked-up with either a propane or natural gas furnace, provided that the gas unit’s output power does not exceed 35.17 kW (120,000 BTU/h).

Is it possible to reduce the fan speed of my PSG furnace to reduce the noise level?

Except for the Max Caddy and the Caddy Alterna, the blower motor on your furnace has four speeds and the installer will have to select two, that is one speed for continuous air circulation during the summer months (low) and one speed for heating. The latter will be selected in accordance with the ducts design and the air distribution needs (normally med-low or med-high).

Electrically speaking, the circulation and heating speeds may be the same if you connect both the black and red wires on the same terminal. You should however take note that reducing the heating speed will reduce the heat exchange and the furnace’s temperature will increase accordingly, which could cause the furnace to overheat.

Should you choose to reduce the blower speed, be certain that the primary air intake damper closes completely when the thermostat is not calling for heat so that in the case of an overheat, the damper motor being deactivated, the furnace will go into slow combustion and the blower will be capable of cooling it down.

Less air flow through the electric unit of a wood/electric combination furnace could also increase the risk that the overheat protection on the unit will trip. This is especially true if the air filter is dirty. This situation will leave you with no electric heat until the sensor is manually reset.

How do I determine what furnace I need between the Mini-Caddy, Caddy and Max Caddy?

We have a “rule of thumb” that is not scientific, but that can give you a good idea on what PSG product you need to install in your house.

We assume that the house has an average insulation, quality windows and doors and 8 foot ceilings, with a location in an area where winter temperatures are comparable to most Canadian areas. We do not count the basement. Start by calculating the area of the main floor and add 50% of the area of a second floor when applicable. If you do not exceed 1,000 square feet, the Mini-Caddy is adequate. Up to 1,700 square feet, a Caddy installed and operated as recommended should satisfy your heating needs. Above 1,700 square feet and up to 3,000 sq. feet, the Max Caddy should be used.

Of course, nothing can replace a heat loss calculation conducted by a forced air heating professional to determine your exact heating needs and verify your existing ducting for compatibility.

Can I add an air conditioning unit to my PSG wood-heating system?

It is possible to use the furnace blower and duct system to install an air conditioning coil. A good control technician can easily connect it without interfering with the safe operation of the furnace. It is prohibited to install the air conditioning coil in the cold air return. The condensation produced will make the firebox rust.
In the case of a wood furnace, we recommend installing the AC coil downstream of the furnace, in a by-pass duct equipped with a damper that can be closed during winter to protect the AC coil from direct radiation of the furnace. In the case of a power failure, the distribution blower would cease working, which could cause excessive temperatures in the plenum that could cause the plastic pan of the AC coil to melt. In the case of a pellet furnace, the AC coil can go directly into the hot air plenum, provided that the plastic pan of the AC coil resists to at least 400 °F. A power outage would cause the pellet feed to stop, which would prevent an overheating of the hot air plenum.

My furnace is a wood electric combo. Is it possible to burn wood and run the fan with a generator in case of a power failure?

First, please note that your PSG furnace, if installed in accordance with the clearances, may be operated without the blower during a power outage, if authorized and mentioned in the manual. In such a case, it is recommended to open the blower access panel to help circulate hot air in the ducts by gravity. You also need to heat moderately. Note that the air intake damper motor will not work without power. It will need to be operated manually. It is possible to feed the blower with a generator, but you must make sure that the power from the house’s electrical panel is cut off to prevent conflict when the power is restored. This can be done automatically with the use of a suitable relay.