INSTALLATION GUIDE
What to Check Before You Buy
Before choosing a tankless model, document hot-water demand, incoming-water temperature, utilities, location and installation constraints. This prevents a specification match that the home cannot support.
KEY POINTS
What to understand first
Demand
Calculate realistic simultaneous hot-water flow.
Temperature rise
Use a cold-season inlet temperature and desired outlet setting.
Utilities
Confirm fuel, voltage, service and circuit capacity.
Site
Verify location rating, venting or electrical needs, drainage and access.
PLAIN-LANGUAGE GUIDE
Create the installation brief before shopping
Bring the installer a short record of household demand, cold-season inlet temperature, available energy, existing equipment, proposed location and photographs of the utility path. Ask which details still require field measurement.
Compare products only after these constraints are understood.
PRACTICAL CHECKLIST
Pre-purchase information to collect
Use this list to organize the information needed for a model-specific decision.
Peak fixture combination
List realistic simultaneous use.
Local inlet temperature
Use a conservative seasonal value.
Fuel and electrical details
Record gas type, panel and service information.
Location and wall conditions
Confirm environment, access and mounting surface.
Venting or circuit route
Review the practical path with the appropriate professional.
Exact documentation
Keep the product page and current manual together.
EXAMPLES OF DIFFERENT REQUIREMENTS
Use verified product data as the final check
These models use different energy sources and have different site requirements. Review the exact details before deciding.

PROPANE / OUTDOOR EXAMPLE
NOVIEEX Tankless Gas Water Heater – Propane 5.3GPM
- Outdoor
- Propane
- Up to 5.3 GPM

240V ELECTRIC EXAMPLE
NOVIEEX 18kW Electric Tankless Water Heater – 240V, Instant Hot Water
- Indoor
- 18kW
COMMON QUESTIONS
Frequently asked questions
Should I choose the model before calling an installer?
You can shortlist models, but professional site and utility review should happen before the final purchase.
What photographs are useful?
The proposed wall, panel or gas service, existing heater and likely utility routes can help the initial discussion.
Is the product title enough for planning?
No. Use the exact manual, rating information and verified product specifications.
NEXT STEP
Browse Water Heating
Continue with the current NOVIEEX product information and model-specific requirements.