Prevents ice dams in gutters, downspouts, and along roof eaves. ETL listed to UL and CSA standards. Self-regulating cable cannot overheat — safe for plastic downspouts. 10-year warranty on bulk cable.
GutterMelt is Heatizon’s heat trace cable engineered specifically for gutters, downspouts, eaves, and drains — keeping a clear path for water to escape the roof before it can refreeze and form ice dams. Available in Self-Regulating (SR) and Constant Wattage (CW) versions, GutterMelt is ETL listed to UL and CSA standards for installation throughout the United States and Canada. The cable can be ordered by the foot for custom commercial and residential installations, or as a pre-configured, ready-to-install kit with a factory-terminated cord and plug.
Self-Regulating vs. Constant Wattage
GutterMelt’s Self-Regulating (SR) cable automatically adjusts its own heat output based on surrounding temperature — producing more heat in colder conditions and less as temperatures rise, modulating within a range of approximately 45–55°F across the cable’s full length. Because the cable physically cannot overheat, SR GutterMelt is safe for use with plastic downspouts and other temperature-sensitive materials, and it can be overlapped or bundled during installation without risk of damage.
Constant Wattage (CW) GutterMelt produces a fixed heat output regardless of ambient temperature. It’s typically specified for longer cable runs or larger commercial systems where engineers need predictable, consistent wattage across the entire length for accurate load calculations. Both versions are ETL listed to UL and CSA standards and deliver the same reliable freeze protection — the choice between them comes down to project size and whether self-regulation or fixed output better suits the design.
Bulk Cable vs. Pre-Configured Kits
Bulk cable, sold by the foot, is cut to the exact length required and installed by a contractor or electrician as part of a custom-designed system. It’s available across the full voltage range — 120V, 208V, 240V, and 277V — making it the right choice for larger or non-standard installations. Bulk cable carries a 10-year manufacturer’s warranty.
Pre-configured kits come ready to install, with the cable factory-terminated to a 6-foot power cord and LED plug, plus downspout hangers and roof clips included. Kits are available in 120V, in standard lengths of 10, 30, 50, 70, 90, 110, and 130 linear feet — designed for straightforward, plug-and-play residential installation. Because of the added factory termination and LED plug, kits carry a 5-year manufacturer’s warranty. The cable itself is identical between both formats; the warranty difference reflects the additional hardware that makes the kit ready to plug in.
Technical Specifications
| Variants | Self-Regulating (SR), Constant Wattage (CW) |
| Voltage | 120V, 208V, 240V, 277V |
| Heat output | 5, 9, 12, or up to 24 (CW) watts per linear foot at 32°F |
| Self-regulating range | Approximately 45–55°F across full cable length |
| Kit lengths | 10, 30, 50, 70, 90, 110, 130 linear ft (120V) |
| Bulk cable sizing | Cut to length in the field (Available as custom cut or in 250′ segments, up to 1000′ max) |
| Safety listing | ETL listed to UL and CSA standards — US and Canada |
| Water wicking resistance | Cable construction prevents water wicking along the length |
| Activation | Thermostatic, hard-wired, or sensor-controlled; 4-zone relay panel available |
| Bulk cable warranty | 10 years (manufacturer) |
| Kit warranty | 5 years (manufacturer) |
| Country of origin | United States of America |
Installation
GutterMelt is installed in a zigzag pattern along roof eaves and run straight down through downspouts to maintain a continuous heated path from the roofline to the ground or drain. Kits include downspout hangers and roof clips sized for standard installations; bulk cable installations follow a project-specific layout for non-standard gutter configurations.
Activation can be thermostatic, hard-wired, or sensor-controlled. For larger commercial properties with multiple circuits, Heatizon’s 4-zone relay panel allows a single activation device to control up to four separate GutterMelt circuits — reducing the number of individual control points needed across a large roofline.
GutterMelt is recommended for use alongside a roof deicing system such as ZMesh or Tuff Cable in Invizimelt. GutterMelt keeps gutters and downspouts clear, but meltwater coming off the roof still needs somewhere to go — pairing it with an under-roof deicing system ensures water has a complete, clear path off the building rather than pooling at the roofline.
Complete the System
For roofs needing both under-roof deicing and gutter protection, pair GutterMelt with ZMesh for non-metal roofing or Tuff Cable in Invizimelt for metal roofing. For pipe freeze protection beyond the gutter system, Heatizon’s OutPipe heat trace cables extend the same self-regulating technology to plumbing. Heatizon can design and supply a complete roof-to-ground freeze protection system from a single listed source.
Why specify GutterMelt
The gutter deicing cable market is dominated by inexpensive constant-wattage cables sold at big-box retailers under brand names like Frost King and EasyHeat. These cables are constant wattage — they produce the same heat output regardless of temperature, cannot self-regulate, and cannot be safely used on plastic downspouts or metal roofing. Industry data from installation professionals suggests these cables average one to two years of real-world service life despite being marketed as a seasonal solution. GutterMelt is in a different category entirely.
GutterMelt is a self-regulating, industrial-grade heat trace cable — the same fundamental technology originally developed for arctic oil pipeline freeze protection. Its heat output adjusts automatically based on surrounding temperature, modulating within a range of approximately 45–55°F across the full cable length. It cannot overheat. It is safe for plastic downspouts, metal gutters, and any roof type. And it is ETL listed to UL and CSA standards for the United States and Canada — a certification the major big-box gutter cable brands do not carry.
GutterMelt bulk cable carries a 10-year manufacturer’s warranty — backed by construction designed for permanent installation rather than seasonal removal and replacement. This is not a product designed to be thrown away and replaced. It is designed to outlast the gutter system it protects.
ETL listed to UL and CSA standards
GutterMelt is ETL listed by Intertek — an OSHA-recognized Nationally Recognized Testing Laboratory — to UL and CSA standards covering the United States and Canada. This listing applies to both the Self-Regulating and Constant Wattage product lines. The ETL listing confirms GutterMelt has passed independent testing for safety and performance — a standard the most widely sold residential gutter cable brands in North America do not meet. The ETL listing file is available on request from Heatizon for verification by engineers, inspectors, and authority having jurisdiction.
Built to prevent water wicking — why cable construction matters
One of the most common failure modes in lower-quality heat trace cables is water wicking — where water travels along the interior of the cable jacket over time, causing internal corrosion, degraded insulation, and eventual cable failure. GutterMelt’s cable construction is specifically engineered to prevent water wicking along the cable length. This is not a marketing claim — it is a construction specification that directly influences long-term performance in outdoor gutter and downspout installations, where the cable is exposed to moisture, freeze-thaw cycles, and seasonal temperature swings for years at a time.
Built by Heatizon — industrial-grade radiant heating since 1979
Heatizon Systems has manufactured electric radiant heating products in the United States since 1979. GutterMelt is one of a complete line of ETL-listed products — including ZMesh and Tuff Cable in Invizimelt for under-roof deicing, and Hott-Wire and Tuff Cable for exterior snow melting. For complete building freeze protection — from the roof surface to the gutters to the downspouts to the drains — Heatizon can design and supply every element from a single listed source, with no mixing of listed and unlisted products from different manufacturers.
Frequently Asked Questions
Guttermelt Roof & Gutter Deicing
A GutterMelt kit includes the heating cable with a factory-attached 6-foot power cord and LED plug, downspout brackets, roof clips, a complete installation and instruction manual, and access to Heatizon’s technical support team.
Yes. GutterMelt cable and kits can be installed in existing gutters and downspouts without modification to the gutter system itself. The cable is secured using hangers and clips designed for the installation, making it a straightforward retrofit for homes and buildings experiencing ice dam or gutter freezing problems.
GutterMelt is recommended for use in conjunction with a roof deicing system such as ZMesh or Tuff Cable in Invizimelt. GutterMelt protects gutters and downspouts, but meltwater coming off a roof still needs somewhere to go — pairing GutterMelt with an under-roof or surface deicing system ensures water has a clear path off the building rather than just clearing the gutters in isolation.
GutterMelt can be thermostatically controlled, hard-wired, or sensor-controlled, depending on the installation. For larger commercial projects, Heatizon offers a variety of relay panels that allow multiple circuits to be controlled from a single activation device. Automatic sensors that detect moisture and temperature are the recommended activation method for energy efficiency — the system only runs when conditions require it.
GutterMelt kits include downspout hangers and roof clips for straightforward installation in gutters, downspouts, and along roof eaves. Bulk GutterMelt cable is installed by a contractor or electrician according to a project-specific layout, typically run in a zigzag pattern along the eave and straight down through downspouts and drains. Cable can be cut to length in the field for custom runs.
GutterMelt’s cable construction is engineered to prevent water wicking along the length of the cable — a common failure point in lower-quality heat trace cables where water travels along the cable jacket and causes internal damage or shorting over time. This construction detail contributes directly to GutterMelt’s industry-leading warranty length.
Pre-configured GutterMelt kits are available in standard lengths of 10, 30, 50, 70, 90, 110, and 130 linear feet. GutterMelt sold by the foot can be cut to any length required for the project, giving installers flexibility for non-standard gutter and downspout configurations.
GutterMelt is available in 120V, 208V, 240V, and 277V configurations. Pre-configured kits are sold in 120V with a factory-attached plug; bulk cable sold by the foot is available across the full voltage range for custom commercial and residential installations.
GutterMelt SR cable produces 5, 9, 12, or up to 24 watts (CW version only) per linear foot at 32°F in snow and ice conditions, depending on the wattage rating selected for the project. Heatizon’s design team specifies the correct wattage based on climate, gutter/downspout size, and the specific freeze protection requirements of the installation.
Constant Wattage GutterMelt produces a fixed heat output regardless of ambient temperature, unlike the self-adjusting SR version. It’s typically specified for longer cable runs or larger commercial systems where consistent, predictable wattage across the entire length is required for accurate system design. Both SR and CW versions are listed to UL and CSA standards and carry Heatizon’s standard warranties based on per-foot vs. kit purchase.
Yes. GutterMelt SR cable is safe for use with plastic downspouts because of its self-regulating heating characteristics — the cable cannot overheat, since its heat output decreases as the surrounding temperature rises. This makes it safe on materials that would be damaged by a constant-output cable running too hot in warmer conditions.
Yes. GutterMelt is ETL listed for the United States and Canada, certified to UL and CSA standards.
GutterMelt cable sold per foot carries a 10-year manufacturer’s warranty. Pre-configured cordset kits carry a 5-year warranty. The difference comes from the kit’s added components — the factory termination and LED plug — which have a shorter rated service life than the heating cable itself. The cable in both versions is identical; the warranty difference reflects the additional hardware required to make the kit plug-and-play.
GutterMelt sold per foot is bulk cable cut to the length specified for the project, intended for custom installation by a contractor or electrician. GutterMelt kits are pre-configured, ready-to-install cordsets that come factory-terminated with a 6-foot power cord and LED plug, along with downspout hangers and roof clips, in standard lengths from 10 to 130 linear feet. The kit format trades custom sizing for plug-and-play simplicity — ideal for straightforward residential installations.
GutterMelt is Heatizon’s heat trace cable for gutters, downspouts, eaves, and drains — designed to maintain a clear water flow path and prevent ice dam formation. It’s available in Self-Regulating (SR) and is ETL listed to UL and CSA standards for the United States and Canada. GutterMelt operates at 120V, 208V, 240V, or 277V and can be ordered by the foot for custom installations or as a pre-configured, ready-to-install cordset kit.
