Royall indoor wood/coal boilers that are designed for years of quality, maintenance free service. We’re committed to building the best performing, longest lasting indoor and outdoor wood boilers available. The boiler tradition that started in 1968 continues today with our efficient series of indoor and outdoor wood boilers designed with specially designed forced draft system that directs air below the cast iron furnace grates efficiently burning wood from the bottom to the top. These boiler systems connect easily to any existing conventional water heating system you already have in place, or as a supplement to an existing heating system.
Pressurized boilers, also known as closed-system boilers, operate under low levels of pressure (typically under 30 PSI) to produce hot water for heating.
These boilers offer numerous advantages:
1. Enhanced Efficiency: The pressurized environment within these boilers boosts heat transfer efficiency, resulting in more effective heating with reduced energy consumption. This increased efficiency translates to lower utility bills and reduced environmental impact. In side-by-side tests, we have regularly seen our pressurized boilers provide as much or even more heat than their non-pressurized counterparts while using up to 50% less wood over the course of a heating season. That can mean reducing your wood use from 20+ full cords in a season down to 10 cords or less depending on the quality of the wood you burn and your specific heating needs.
2. Consistent Performance: Pressurized boilers maintain a steady pressure level, ensuring consistent heat delivery throughout the system. This ability to maintain consistent temperatures throughout the entire system reduces wear and tear over time due to drastic heat fluctuations which can crack, twist, and compromise the integrity of the boiler. Consistent temperatures also allows wood to burn steadily for optimal fuel utilization and provides occupants with stable heat.
3. No Need For Water Treatments or Lab Results: Pressurized boilers, however, do not need to be filled with treated water. The pressurization drastically reduces the amount of corrosive oxygen in the system so the boiler can last significantly longer than even the most meticulously maintained unpressurized systems with no tests, treatments, and no lost warranty.
4. Space-Saving Design: With compact and streamlined designs, pressurized boilers require minimal space, making them suitable for indoor installations in tight quarters such as utility closets or boiler rooms. Indoor boilers also keep you out of the elements when it’s time to add more fuel.
5. Compatibility with Modern Systems: In most cases, pressurized boilers seamlessly integrate with modern radiant heating and under floor heating systems, offering versatile solutions for diverse heating needs.
6. Never Need to be Refilled: Pressurized boilers are outfitted with an auto-fill valve as part of a standard installation. This means that they always stay filled to the optimal level without you needing to raise a finger! This is a major benefit over unpressurized boilers as you typically need to add water to an unpressurized system every 3-7 days depending on your circumstances. Neglecting to maintain the proper water levels in a boiler can lead to catastrophic warping, cracking, and leakage. It is important to note that damage due to neglect and under filling is not typically covered by warranty which may leave the homeowner liable for thousands of dollars worth of repairs or in need of a new boiler altogether.
Despite their many benefits, pressurized boilers have some drawbacks:
• Higher Initial Cost: The upfront cost of installing a pressurized boiler may be higher than non-pressurized alternatives. However, the long-term savings from improved energy efficiency often offset this initial investment.
• Complex Installation: Professional expertise is recommended for the installation of pressurized boilers due to the complexities associated with pressurized systems. Homeowners may incur additional expenses for professional installation services.
• Fear of Being “Pressurized:” One of the most common hesitations we see with pressurized boilers is the fact that they are pressurized. This word seems to create mental images of pressure cookers full of mashed potatoes exploding all over the kitchen ceiling. A pressurized boiler, however, is nothing to be afraid of. Most systems are pressurized at or below 30 PSI and include multiple pressure relief safety features. For some context, your water heater is somewhere around 100 PSI and the plumbing inside your home is typically around 60 PSI. 30 PSI is equivalent to a garden hose or most faucets in your home and poses no threat of exploding. In fact, the pressure serves many important purposes including preventing the water inside the system from freezing and damaging your boiler or plumbing.
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