King Electrical Manufacturing Co

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Claim This BusinessAbout King Electrical Manufacturing Co
King Electrical Manufacturing Co supplies electric heating equipment to the Seattle metro area. Based on 54 customer reviews, they maintain a 4.1-star average rating. Their facility operates Monday through Friday, 7 AM to 3:30 PM, answering calls at (206) 762-0400. The company focuses exclusively on electric heating systems rather than full-spectrum HVAC, carrying residential units like baseboard heaters, fan-driven heaters, and radiant panels alongside commercial and industrial equipment.
What distinguishes this supplier is their emphasis on proper system sizing. Their website hosts interactive calculators for garage heaters, cove heaters, warehouse spaces, and general room-heating requirements, helping customers avoid undersized or oversized installations. Beyond sales, they stock specialized products including marine heaters, greenhouse heaters, explosion-proof heaters for hazardous environments, and hydronic fan-driven systems. Their product advisor and online resources suggest technical depth beyond basic retail.
One reviewer recounted struggling with an EC thermostat not activating baseboard radiators and seeking manufacturer support. After a thirty-minute call in which technical support could not locate the model number and ultimately terminated the call, the customer attempted escalation. Sales redirected them to voicemail, and they were subsequently transferred to human resources without reaching customer service directly. This account surfaces communication gaps that prospective buyers may want to consider.
What Customers Say
Two customers mention difficulty reaching qualified technical support for older thermostat models, with one describing a thirty-minute call that ended without resolution. Four reviewers note the breadth of electric heating products and online sizing tools as primary reasons for choosing this supplier. Sentiment splits between those valuing product variety and those experiencing frustration with post-sale assistance.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–3:30 PM |
| Tuesday | 7 AM–3:30 PM |
| WednesdayToday | 7 AM–3:30 PM |
| Thursday | 7 AM–3:30 PM |
| Friday | 7 AM–3:30 PM |
| Saturday | Closed |
Services
Residential Electric Heaters
Baseboard, fan-driven, radiant, cove, and ceiling-mounted heaters for homes, including portable personal units.
Commercial and Industrial Heaters
Unit heaters, cabinet heaters, plenum heaters, and explosion-proof rated heaters for warehouses and facilities.
Hydronic Heating Systems
Hydronic fan-driven heaters, hydronic draft barriers, and hydronic conversion units paired with electric systems.
Specialty Heating Equipment
Marine heaters, greenhouse heaters, pumphouse heaters, restaurant tent heaters, and extreme environment units.
Thermostats and Controls
Line voltage, low voltage, wireless RF, property management, and NEMA 4X-rated thermostats with accessories.
Freeze Protection Systems
Heating cable for pipes, snow melt systems for roofs and gutters, with dedicated controls.
Technical Support and Sizing Tools
Product advisors and online calculators for properly sizing heaters across residential and commercial applications.