(1) plumber differences
The use of dn20 copper aluminum complex tubes (at a cost of $80-120 per metre) and the need for dn16pe-xa tubes (at a cost of $150-200 per metre) for the heating of the ground resulted in the cost of heating pipes being 30-50 per cent higher。
(2) impact of the complexity of construction
The heating requirement is a precision calculation of the surface height (8-12 cm/house) and involves the construction of a water-proof layer (at a cost of $80-120 per m2) and lower requirements for the installation of a heating chip (only 20 cm ceiling space)。
Accounting for full life cycle costs (core: operating costs of heating chips, heating costs)
1. Comparison of energy consumption data (in the case of 100 m2 dwellings)
(1) heating film system
- for *thermal temperature: 70°c±2°c
- average daily calorie consumption: about 120 kwh
- average annual operating cost: 120 x 30 x 365 x 0. 6/kwh = 13180
(2) thermal system
- heating temperature: 50 °c±2 °c
- average daily calorie consumption: about 95 kwh
- average annual operating cost: 95 x 30 x 365 x 0. 6/kwh = 10377
2. Comparison of special cost items
(1) cost of maintenance of the heating tablets
- annual cleaning costs: 80-150 yuan/group (8-10 pieces each)
- possibility of leak maintenance: 0. 3 times per year/household (central heating area)
(2) warm maintenance costs
- annual cleaning costs: $300-500 (requiring a professional stress test)
- probability of failure maintenance: 0. 5 times per year/household (risk of water heating pipe blockage)
Iii. Analysis of equipment context and repactive resources (core: heating installations, heating* applicability)
1. Comparison of space restrictions
(1) prejudice of heating tablet installation
- altitude of latency: 2. 4 m (hidden installation)
- accountable type: dwellings of up to 2. 6 m (common old districts)
(2) restrictions on heating installations
- ban area: gross premises flat difference > 3 mm/m
- special requirements: there is a need to set aside inspection doors (per 20 m21)
2. Geographical climate suitability
(1) severe cold areas (under 20°c)
- heating tablets: 92% fit rate in central heating areas
- warming: additional anti-frozen tube (+15% cost)
(2) transition season (10-15°c)
- heating chips: 18% loss of intermittent heating efficiency
- warming: heat storage can extend heating for 3-5 days
Model case costing (core: case of heating tablet installation, calculation of heating costs)
1. 80m2 comparison programme for housing
Programme a: heating card systems
- installation costs: $42,000 (comprising 5 sets of 16 heaters)
- operating costs: $13180/year
- total cost for 10 years: 42000 + 13180 x 10 = $173,800
Programme b: thermal systems
- installation costs: $68,000 (including 40 m2 heat cables)
- operating costs: $10377/year
- total cost for 10 years: 68,000 + 10377 x 10 = $171770
2. Cost balance point analysis
When the life cycle exceeds 7. 3 years (at current electricity prices), the total cost of ground heating is inversely superheating. However:
- centralized heating subsidized areas (average annual subsidy of $3,000)
- intermittent heating areas (actual days < 220 days)
- under scenarios such as air-conditioning energy-saving connections (handing + new wind system), the heating film still has a cost advantage。
V. Specific decision material (core: hip, hip)
1. Core advantages of the heating chip
(1) open-to-heat properties: 15 minutes after start-up to set temperature
(2) temperature precision: single group independent control (in error ± 1°c)
(3) maintenance ease: external overhaul (no ground damage required)
2. Core warming advantages
(1) comfort improvement: foot temperature constant at 28-30°c
(2) energy-saving potential: geo-source heat pump system cop up to 4. 0
(3) space utilization: elimination of kick-line design (15 cm released)
3. Decision assessment tables
| assessment dimensions | heating tablets (1-5) | land heating score (1-5) |
| - | - | - | - | - | - |
Installation costs
Operating cost 3 4
| maintenance difficulty
♪ comfortableness 3 ♪ 5 ♪
Application 4 3
Through a full-life cost model, the heating tablets have a cost advantage over a seven-year life cycle, and the heating is better suited to long-term self-sustainment or high comfort needs. Recommendations:
1. Prioritize the selection of heating units in concentrated heating areas
2. Promising long-term ownership (>8 years) of ownership land warm
3. Suggested mix of smart temperature control systems (with a 15% reduction in running costs)
4. Concerned about the government's policy of subsidies for energy conservation (heating subsidies up to 2000 yuan/m2)
(full text statistics: 2368 words, density: 4. 1 per cent, core long endwords covered: comparison of heating tablet prices, heating installation costs, guidelines for the selection of heating equipment)
How do we detect the heat leak? Which of the five professional approaches and attentions is more cost-effective in terms of total heating of the air and the warmth? How do you choose the height of the heating unit for the full price comparison guide? Updated installation standard + full size for different rooms
