The Northeast region experiences long, bitterly cold winters, requiring heating solutions for three-story villas that balance comprehensive coverage with long-term cost-effectiveness.
✔ For families planning long-term residency with ample budgets, ground-source heat pumps offer a “set-and-forget” energy-efficient solution;
✔ If rapid deployment and moderate budgets are priorities, gas boilers provide reliable heating;
✔ For limited budgets or flexible supplemental heating needs, electric heaters and high-efficiency fan heaters (such as the SIAL series) serve as versatile supplementary tools.
Ground-Source Heat Pump System
Suitable Scenarios: Households planning to reside for over 10 years with sufficient initial budget (approximately ¥150,000–250,000).
Core Advantages:
Ultra-low operating costs: Exchanges thermal energy with soil via underground pipes, achieving heating efficiency of 400%–500% (compared to 100% for electric boilers). Winter heating costs can be reduced by 50%–70% compared to gas boilers. Example: Annual heating costs for a 300㎡ villa in Shenyang range from ¥3,000–4,000 (electricity rate: ¥0.5/kWh).
Long-lasting and stable: Underground pipes last over 50 years, with main units exceeding 20 years. Maintenance costs are only one-third of air conditioning systems.
Dual cooling and heating: Reverse operation provides summer cooling, eliminating separate air conditioning installation costs.
Key Limitations
Requires sufficient yard space (approx. 200㎡) for drilling and pipe installation. Suitable geological conditions are essential (e.g., rock layers may incur additional costs). Initial installation necessitates professional design and construction, with a project timeline of approximately 1-2 months.
Gas Boiler
Suitable Scenarios: Households with moderate budgets (approximately 50,000–100,000 RMB) seeking immediate, stable heating.
Core Advantages:
Instant Warmth: Gas boilers heat rapidly, delivering a comfortable “warm feet, cool head” experience when paired with radiant floor heating systems.
Flexible Temperature Control: Zone-specific thermostat technology (e.g., electric actuators) prevents energy waste in unoccupied rooms, yielding measured savings of 20–30% on gas bills.
Policy Support: Some cities offer subsidies for gas boiler retrofits (e.g., Changchun provides 30% subsidies for energy-efficient boilers).
Optimization Recommendations
Select a condensing gas boiler (thermal efficiency ≥105%) for 15%-20% greater energy savings than traditional boilers. Pair it with a smart thermostat (e.g., Nest) to remotely adjust temperatures via mobile app, preventing waste from “leaving the heat on when you're out.”
Electric Heaters/Fan Heaters
Suitable for: Households with limited budgets (single unit approx. ¥200-2000) requiring temporary or localized heating.
SIAL Heater:
Infrared Radiant Heating: Directly warms people and objects, minimizing air convection loss and saving 30% energy compared to traditional space heaters.
IP24 Waterproof Rating: Safe for use in humid environments like bathrooms and balconies, expanding application scenarios.
Safety Assurance: Certified by 3C safety standards, suitable for households with children or pets.