The Sieger 20 kW oil/ waste oil boiler available at Top Heating Systems is a testament to decades of engineering excellence. Offering reliable performance with the flexibility to use both oil and waste oil, this high-quality, used boiler exemplifies superior efficiency. Our inventory includes meticulously vetted products from leading manufacturers, ensuring each unit meets the highest standards. Experience the combination of innovation and durability with the Sieger 20 kW boiler, a smart investment for your heating needs.