faq-banner

Tankless | November 12 2024

Tankless Water Heater Calculator

Choosing the Right VENUS Tankless Water Heater with Our Sizing Calculator
Hot Water Professionals
When it comes to selecting the perfect water heater, tankless models offer significant advantages. When selecting a tankless water heater, it’s important to ensure the model suits your home’s specific needs. With tankless systems offering on-demand hot water, energy savings, and a compact design, finding the right capacity is key. That’s where the Venus Tankless Water Heater Calculator comes in.

How the VENUS Tankless Water Heater Calculator Works
Our calculator is designed to take the guesswork out of selecting a tankless water heater.Our tool simplifies the process of choosing the perfect tankless water heater by considering essential factors and by inputting key details like:
Cold Water Inlet Temperature
Hot Water Professionals
The temperature of your incoming cold water is influenced by your geographical location. For colder regions, the water temperature may be as low as 15°C, while in warmer areas, it can rise to 25°C. This variance plays a critical role in determining the energy required to heat the water to your desired level.
Shower Types and Flow Rates
Hot Water Professionals
Venus categorizes showers by their flow rates, which impact water consumption and heating requirements:

Light: Flow rate of 3-5 L/min, ideal for low-flow showerheads or water-saving users.

Medium: Flow rate of 5-7 L/min, which is a common choice for most households.

Comfort: Flow rate of 8-10 L/min, suitable for those who enjoy a fuller water flow during showers.

Luxury: Flow rate of 10-12 L/min, designed for high-end showers with multiple shower heads or heavy water usage.



Desired Hot Water Temperature
Hot Water Professionals
Based on personal preferences and usage, the desired output temperature can vary. Venus provides three options for users:

Warm (37°C): Suitable for mild climates or minimal heating.

Hot (40°C): The most common setting for general household use.

Steamy (42°C): Ideal for luxurious showers or spa-like experiences.

The greater the temperature rise from your cold water inlet, the more power your Tankless Water Heater will need.

Technical Recommendations for Informed Decisions:

Hot Water Professionals


In addition to capacity recommendations, our calculator goes a step further by providing crucial technical specifications that will assist you or your service technician in selecting and installing the correct model. These include:

Rated voltage: Ensures compatibility with your home’s electrical system.
Rated pressure: Verifies that the unit can handle your home’s water pressure requirements.
Wiring size: Helps determine the appropriate wiring for safe and efficient installation.
Rated current: Ensures the correct electrical load for optimal functioning.
These specifications ensure not only performance but also safety and efficiency, giving you a comprehensive view to make an informed decision.
Model Selection Types:
Hot Water Professionals
1) Based on Climate, Desired Temperature, and Shower Type

The first option in the Tankless Water Heater Calculator simplifies the selection process by helping you choose the right model based on key inputs such as local climate, desired hot water temperature, and the type of shower you prefer. With these details, the calculator provides tailored recommendations to ensure optimal performance and comfort for your specific needs.

2) Based on Power (KW) of Your Chosen Model

The second option in the calculator provides detailed information about the flow rate and type of shower based on the power (kW) of the model you’ve selected or are considering. This ensures that the tankless water heater you choose aligns perfectly with your desired performance, offering the right balance of power and flow for your needs.

Benefits for Technicians:
Hot Water Professionals
Not only does the calculator help homeowners, but it’s also designed to assist service technicians. It provides recommended technical specifications such as flow rates, temperature settings, and other critical details for easy installation. Technicians can ensure optimal performance, saving time and effort during setup

A Valuable Tool for Architects
Our Tankless Water Heater Calculator is not just helpful for homeowners and technicians—it is also an invaluable tool for architects. When working with clients to design custom homes or renovation projects, architects can use the calculator to easily select the appropriate tankless water heater based on the client’s specific needs and local conditions. It ensures that both form and function align perfectly, providing an efficient, space-saving solution that can be tailored to the home’s requirements.

The Importance of Proper Installation
Selecting the right heater size is not the end of the decision-making process. Proper installation by a licensed professional is crucial. The Tankless Water Heater Calculator tool is designed to provide both homeowners and technicians with the information they need for smooth installation. It takes into account voltage, circuit breaker size, and flow rates to prevent overloading or inefficient performance.

Energy Efficiency and Cost Savings
One of the primary benefits of choosing a tankless water heater over traditional storage water heaters is the energy savings. Tankless systems only heat water on demand, reducing standby heat loss. The accurate specifications provided by the calculator help minimize energy waste, saving you money on utility bills in the long run.

Explore Our Range of Tankless Water Heaters
Hot Water Professionals

Venus offers a variety of tankless water heater models to suit different needs. Here’s a quick overview of the models available in our range:

QUIK - QU55 – Ideal for small households with standard hot water usage. Compact and energy-efficient, it’s perfect for apartments or small homes and ideal to be installed in the kitchen.

QUIK - QU75 – A mid-sized option for medium to large families, providing consistent hot water for multiple showers.

QUIK - QU90,123,153,183,243 – High-capacity units designed for large homes or commercial spaces, capable of handling heavy-duty water heating demands with ease. They provide super fast hot water for a super fast lifestyle.

Each model is designed with advanced and unique heat exchanger technology to ensure energy savings, durability, and user-friendly controls.

Make the Smart Choice – Empower Your Choice with the Right Specs

Choosing the right Venus tankless water heater doesn’t have to be complicated. With our calculator, you can ensure that Whether you’re a homeowner looking to upgrade your water heating system or a technician needing precise specifications,or an Architect helping the client to choose the right model, our Tankless Water Heater Calculator will guide you to the ideal model, providing reliable hot water while saving energy. From capacity to electrical and pressure requirements, it covers every aspect so you can make the best decision for your needs. Start using our calculator today to find the perfect Venus tankless water heater, and explore our range for a solution tailored to your home or business!

Whether you need a low-power model like the QU55 for a smaller household or a more powerful solution like the Q243 for larger homes, Venus has a model suited to your unique needs. For further details and personalized calculations, visit www.venushomeappliances.com/product/tankless-water-heater
APP