NROIL400 Nordic Oil Control 3.0 Min/25.0 Max, 400 Zoom

NordicStove Toby Oil Controller 3.0 Min/25.0 Max, 400

NROIL400

Models: Nordic 40,000 models

Status: In Stock

US$260.00

Description

Description

The NordicStove Toby Oil Controller, part number NROIL400, is a mechanical fuel flow regulator designed to control the delivery of heating oil to the vaporizing burner of the NordicStove 400 series freestanding oil-fired room heater.

The Toby DVR5 regulates fuel flow through a variable-position dosage slot on a metering fuel tube, providing manually adjustable flame output across the calibrated operating range between the minimum setting of 3.0 and the maximum setting of 25.0 specific to the 400 series. At the maximum position — the sixth and final index on the valve — the 400 series heater operates at an input rating of 54,075 BTU per hour and delivers a proximal heat output of 40,000 BTU. This controller version does not include the optional thermostat assembly and operates exclusively through manual adjustment of the control knob.

The Toby DVR5 is a fully mechanical regulator that functions without electrical power or batteries, making it well suited to off-grid, remote, marine, and emergency heating installations. A float-type carburetor within the controller maintains the correct fuel level in the regulator bowl throughout operation, preventing over-fueling and burner flooding under normal conditions. A flooded-bowl safety reset lever provides a means for the operator to restore the controller to normal function in the event of a flooding occurrence. A fuel filter screen on the inlet blocks foreign matter from reaching the metering fuel tube and burner nozzle. An over-heat shut-off device stops fuel flow to the burner if the regulator body itself reaches an unsafe temperature.

The NROIL400 is factory-calibrated for Number 1 grade heating oil and is compatible with Number 2 heating oil, automotive diesel, marine diesel, and kerosene with appropriate burn setting adjustment. The optional thermostat assembly for automatic temperature-based modulation is available separately.

What's Included: One NordicStove Toby DVR5 oil controller calibrated for the 400 series heater with minimum flow rate setting of 3.0 and maximum flow rate setting of 25.0. Thermostat assembly is not included.

Installation Limits: This oil controller is calibrated exclusively for the NordicStove 400 series and must not be installed on 68, 130, or 250 series heaters. The stove must be level for correct low-burn operation. High burn settings must be adjusted before low burn settings whenever controller calibration is changed. Crankcase oil, waste oil, gasoline, white gas, and any fuel mixture containing gasoline must never be used.

Compatibility: Compatible with NordicStove 400 series freestanding natural draft oil-fired room heaters using the Toby DVR5 oil control system. Accepts Number 1 heating oil, Number 2 heating oil, automotive diesel, marine diesel, and kerosene.

Features

Features

  • Mechanical Toby DVR5 oil controller factory-calibrated for the NordicStove 400 series with a minimum flow rate setting of 3.0 and maximum flow rate setting of 25.0
  • Supports the full 40,000 BTU proximal heat output of the NordicStove 400 series at the sixth and final maximum index position on the valve
  • Float-type carburetor automatically maintains the correct fuel level in the regulator bowl, protecting the burner against over-fueling and flooding during operation
  • Flooded-bowl safety reset lever and over-heat shut-off device provide layered protection against flooding and regulator overtemperature conditions
  • Operates entirely without electrical power or batteries, making it reliable for off-grid, remote, marine, and emergency heating installations
  • Thermostat assembly not included — accepts the optional NordicStove thermostat accessory for automatic room temperature-based fuel modulation when required

Specifications

Specifications

Part Number: NROIL400
Brand: NordicStove
Controller Model: Toby DVR5
Minimum Flow Rate Setting: 3.0
Maximum Flow Rate Setting: 25.0
Compatible Stove Series: NordicStove 400 Series
Thermostat Included: No — optional thermostat available separately
Fuel Compatibility: Number 1 and Number 2 Heating Oil, Automotive Diesel, Marine Diesel, Kerosene

 

The NordicStove NROIL400 Toby Oil Controller provides fully mechanical, non-electric fuel flow regulation for the NordicStove 400 series oil-fired room heater across a calibrated 3.0 minimum to 25.0 maximum flow range, supporting the full 40,000 BTU proximal heat output of the 400 series with integrated flood protection, over-heat shut-off, and inlet filtration, while accepting an optional thermostat assembly for automatic temperature-based fuel modulation.

 

Support

Support

 
Product FAQ

What heat output does the NordicStove 400 series produce at the maximum controller setting?

At the maximum flow rate setting of 25.0 — the sixth and final index position on the Toby DVR5 valve — the NordicStove 400 series operates at an input rating of 54,075 BTU per hour and delivers a proximal heat output of 40,000 BTU. This output capacity makes the 400 series suitable for heating larger cabins, tents, and residential spaces that exceed the capacity of the 68, 130, and 250 series models. Reaching full output requires that the high burn adjustment screws are correctly calibrated for the fuel in use and that the chimney system provides adequate draft throughout the operating range.

How does the Toby DVR5 on the NROIL400 regulate fuel delivery to the 400 series burner?

The Toby DVR5 regulates fuel delivery through a slotted dosage fuel tube within the controller body. As the operator rotates the control knob, the portion of the dosage slot exposed to the fuel pathway changes, increasing or decreasing the volume of fuel entering the burner in direct proportion to the knob position. A float-type carburetor continuously maintains a consistent fuel level in the regulator bowl, ensuring that the dosage slot delivers a calibrated and predictable fuel volume at each knob position across the full 3.0 minimum to 25.0 maximum operating range of the 400 series controller.

Can the NROIL400 oil controller be installed on other NordicStove series models?

No. The NROIL400 is factory-calibrated exclusively for the NordicStove 400 series and must not be installed on 68, 130, or 250 series heaters. Each NordicStove series requires a controller calibrated to its specific minimum and maximum flow rate range, as the dosage slot dimensions and adjustment screw positions differ across series. Installing a controller from the wrong series can result in incorrect fuel delivery rates, unstable flame behavior, and potential safety risks from over-fueling or under-fueling the burner at one or both operating positions.

What is the correct sequence for adjusting the burn settings on the NROIL400?

The high burn setting must always be adjusted before the low burn setting on the Toby DVR5 oil controller. Two screws affect fuel flow at the high setting — the high adjusting screw and the high limit screw — and both must be correctly set before any adjustment is made to the low burn position. Before making any adjustments, the chimney system must be drafting properly, the fuel tank and filter must be allowing unobstructed flow to the stove, and the stove must be confirmed level. Adjusting the low burn setting before the high burn adjustment is complete will result in an improperly calibrated operating range.

What fuels are compatible with the NordicStove NROIL400 oil controller?

The NROIL400 is factory-calibrated for Number 1 grade heating oil and is compatible with Number 2 heating oil, automotive diesel, marine diesel, and kerosene. When any fuel other than Number 1 heating oil is used, the high and low burn adjustment screws may require recalibration to achieve proper flame output and stable low-range operation for that fuel grade. Crankcase oil, waste oil, gasoline, white gas, and any mixture containing gasoline must never be used under any circumstances, as these fuels create severe fire and combustion hazards in a vaporizing burner system.

Can the optional thermostat be added to the NROIL400 controller after purchase?

Yes. The Toby DVR5 oil controller is designed to accept the optional NordicStove thermostat assembly, which mounts directly onto the top of the controller with the actuation lever tip positioned over the thermostat fuel metering pin. Once installed, the thermostat automatically modulates fuel flow between the low and high burn positions in response to ambient room temperature without requiring electrical power. After the thermostat is attached, the controller burn settings must be verified and the thermostat recalibrated to match the current low and high output positions established for the NROIL400 controller.

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