Fröling PE1 Automatic Wood Pellet Boiler

High Efficiency EPA Certified Compact Pellet Boiler

EPA Certified!

The Fröling PE1 Automatic Wood Pellet Boiler is a compact, Lambda controlled boiler for central heating and for making hot water. Fröling PE1 wood pellet boilers provide a convenient, safe and environmentally responsible way to heat space and hot water with wood pellets. PE1 owners are assured of unusually high heating efficiency, low heating costs, and use of an abundant, locally available, renewable fuel. With its ingenious, fully automated operation, this boiler is amazingly easy to use. PE1 Automatic Wood Pellet boilers provide the convenience of gas or oil central heat with dramatically reduced fuel costs and reduced carbon emissions. The boiler is covered by a 20-year limited warranty.

Available Models

• Fröling PE1 Boiler 15/20- 51,000-68,000 Btu/hr
• Fröling PE1 Boiler 25/35- 85,000-120,000 Btu/hr

Test Report Files PE1 Pellet 20 - File size 11 MB
Test Report Files PE1 Pellet 35 - File size 9 MB

Froling PE1 Pellet Boiler
Froling PE1 Cross Section

Automatic Comfort

The Fröling PE1 automatic wood pellet boiler is ingenious and fully automatic. It can replace an oil or gas boiler and can be relied upon to run for a month or more at a time without human touch. The boiler modulates to match the heating load and uses very little power to operate. The wood pellet boiler uses long-lasting, low energy, hot surface igniter for ignition. Other unique features that set the boiler apart from other wood pellet boilers are a combustion grate that slides to clean while at the same time integrating a chimney cut-off function to retain heat in the boiler when not actively burning. The standard wood pellet fuel vacuum can be located any place along the return air-line for easy service and sound management.

First Look at the New Fröling PE1 Automatic Pellet Boiler

Learn More - Downloadable Brochures

Frpoling PE1 Brochure

Fröling PE1 Brochure - file size 959 Kb

Tarm Biomass Pellet Planning Guide

Pellet Planning Guide - file size 4 Mb

HS tarm Pellet Plumbing Guide

Plumbing Planning Guide - file size 2 Mb

Are You Stoked? - file size 91 Kb


The automatic sliding grate clears ash. The movement also controls the secondary air and the integrated chimney cut-off at the same time. The boiler lights automatically with a low Wattage hot surface igniter, which does not contact the wood pellet fuel and therefore is very durable. The wood pellet boiler has unique dual safety gates that are controlled by one single heavy duty spring-wound actuator for maximum burn-back protection.

Speed Regulated Draft Fan and Lambda Control

A speed regulated fan combined with oxygen and temperature based exhaust sensors allow Fröling PE1 boilers to modulate output while remaining clean and efficient. The boiler can react to changing pellet fuel (harder/softer, more/less pitch, small/large pellets) while still remaining clean. The use of oxygen control is less common, but it is the best way to ensure the cleanest burn possible. Standard large touch screens enable internet connectivity and the ability to view multiple functions at a single glance. Fröling PE1 controls track fuel use, maintenance, and the function of all electric components.

Self Cleaning System

Fröling pellet boilers self clean the combustion grate and heat exchanger so that combustion is safe, clean, and controlled while extracting as much heat as is possible from your valuable fuel. Ash is collected into a handy covered container that can be carried away like a small suitcase for disposal.  Average homeowner use only requires that the ash box be removed 3-5 times per year depending on the amount of fuel used.


Fröling Connect software allows free remote monitoring and control from web enabled devices. You can read and modify the main status information and settings easily and conveniently on-line. It is also possible to store historic operating information and receive warnings such as when the ash box is full. It allows the owner of the heating system to enable additional users, for example a family member, neighbor, or service technician. Once the boiler is connected to the internet, the system can be accessed 24/7 from everywhere using a smartphone, tablet, or PC with web browser.

Pellet Suction Module

       Pellet Storage Integration-several options available

  1. Universal System -one or three suction probes uniformly provide complete emptying of the storage room.
  2. Suction Screw System - ideal for rectangular rooms with front end removal.
  3. Bag Silo - pre-manufactured, flexible, simple and easy to assemble.
  4. External Silo - ideal for commercial or for use when there is inadequate interior space.
  5. The Cube - a cost-effective solution for small fuel requirements.

PE1 Wood Pellet Boiler Features

• EPA Certified
• Safety Tested and Listed
• For Home or Light Commercial Use
• Fully Automatic
• Bulk Fuel Ready

• Fully Factory Assembled
• Pneumatic Wood Pellet Feed
• Lambda Controlled for Optimal Combustion
• Unique Dual Safety Gates
• Cascade Control Available for Multiple Boilers

• Automatic Heat Exchange Cleaning
• Compact Construction
• Used With or Without Thermal Storage
• Exhaust Temperatures Under 350 F
• Ash Box with Auger for Long Ash Removal Times

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