Domestic hot-water — Demand & Compliance (XA §6.1)

Calculates daily/annual hot-water energy, checks allowed technologies, ≤50% electric supplementary cap, editable Table 10 min storage for SWH/HP, and pipe insulation R checks (Table 11 – editable).

Import

1) Project context

City / Town

Energy Zone

Auto-syncs with Basics.

Building type

Occupants

Litres/occupant·day (editable)

ΔT setpoint rise (°C)

2) Technology & supply split (XA §6.1)

Primary technology

Supplementary electric (%)

XA note: electric supplementary ≤ 50% of annual average volume.

System EER estimate

SANS 6.1 Note 3: If measures are poor, EER may drop to 0.2.

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3) Demand & energy

Daily volume

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Daily thermal (kWh)

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Annual thermal (kWh)

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Est. grid kWh (after EER)

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4) Minimum storage (Table 10)

Litres per person (SWH)

Litres per person (Heat pump)

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5) Pipe insulation (exposed) — SANS 10400-XA 6.1.6 & 6.1.7

Enter proposed insulation length and thickness. Table 11 Required: R 1.00 for ≤ 80mm dia. | R 1.50 for > 80mm dia. Piping to be insulated includes hot supply/return, and cold water / pressure relief (PRV) within 1m of connection.

Run	Location	Length (m)	Thickness (mm)	k (W/m·K)	R-proposed	R-min (Table 11)	Status

6) Compliance summary

Electric supplementary ≤ 50%: —

Storage (Table 10): —

Pipes R (Table 11): —

Technology allowed (SANS 6.1 Note 1): —

EER advisory (SANS 6.1 Note 3): —

Boost EER by larger storage/timers per XA Note 4.