Guides & Instructions

Access our comprehensive library of Fernox App guides, including user manuals, on-site testing instructions, and postal testing guides.

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System Health Check

The System Health Check is a premier postal sampling service which provides accurate laboratory diagnosis of central heating problems, in order to ensure the co…
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Postal Water Test Comparison

The table below presents a comprehensive overview of the various chemical testing parameters analyzed in the Fernox postal water testing products. These parameters are carefully selected to assess the…
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On-site Water Test Comparison

The table below presents a comprehensive overview of the various chemical testing parameters analyzed in the Fernox postal water testing products. These parameters are carefully selected to assess the…
Read More

Water Quality Test

The Water Quality Test is a paperless, smart phone driven, postal laboratory service that provides a diagnostic check of five key water quality criteria to guard against the causes of centra…
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Commercial Water Quality Test

The Commercial Water Quality Test is a paperless, smart phone driven, postal laboratory service designed for commissioning monitoring, and maintaining commercial heating systems.  …
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Commercial Fill Water Test

The Commercial Fill Water  Test is a paperless, smart phone driven, postal laboratory service designed for commissioning monitoring, and maintaining commercial heating systems…
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Diagnostic Water Test

The Diagnostic Water Test is a comprehensive app-based postal laboratory test for heating system water.  Once the sample has completed laboratory testing, the system will generate a …
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Instant System Test

The Instant System Test is a convenient, easy-to-use method of testing the system water quality at the job site. After testing a PDF certificate will be generated automatically and sent to c…
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Express Inhibitor Test

The Express Inhibitor Test provides a rapid on-site analysis of the concentration of all Fernox Protectors, and other molybdate based inhibitors, in central heating system water. After te…
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Report Email Management

Manage the report emails from your engineers or installers that are sent to your inbox. As a manager, you can enable or disable these emails individually, giving you full control over which notific…
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Find Managed User Test Records

Currently, managers can only access data from other users via the web portal at https://fernox.app. Once granted manager-level access permissions, you will be able to view user samples from al…
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Manager Level Access

At this time, Managers can only access data from other users through the web portal, available at https://fernox.app. All users—whether new or existing, using the Fernox App, the web port…
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Invite Manager

As a registered user of the Fernox App or web portal, you can invite a Manager to view your submitted samples. This is helpful if you want to share test results with someone responsible for manag…
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Connectivity Troubleshooting

This guide provides steps to diagnose and resolve connectivity issues when using Fernox app and platform. Connectivity problems may be caused by network restrictions, device settings, or temporary …
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Forgot Password

This section provides a step-by-step guide on how to reset your password if you can’t remember it. Follow the instructions below to regain access to your account quickly and securely.…
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Forgot Password

This section provides a step-by-step guide on how to reset your password if you can’t remember it. Follow the instructions below to regain access to your account quickly and securely.…
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Offline Submissions

No connection? No problem. You can still take tests offline — your responses will be saved on your device and ready to submit once you’re back online.…
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Invite Manager

As a registered user of the Fernox App or web portal, you can invite a Manager to view your submitted samples. This is helpful if you want to share test results with someone responsible for manag…
Read More

Manager Level Access

At this time, Managers can only access data from other users through the web portal, available at https://fernox.app. All users—whether new or existing, using the Fernox App, the web port…
Read More

Find Managed User Test Records

Currently, managers can only access data from other users via the web portal at https://fernox.app. Once granted manager-level access permissions, you will be able to view user samples from al…
Read More

Report Email Management

Manage the report emails from your engineers or installers that are sent to your inbox. As a manager, you can enable or disable these emails individually, giving you full control over which notific…
Read More

Draft Submissions

Take tests anywhere and save your responses as drafts — submit them whenever you’re ready, whether you want to pause or complete it later.…
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Connectivity Troubleshooting

This guide provides steps to diagnose and resolve connectivity issues when using Fernox app and platform. Connectivity problems may be caused by network restrictions, device settings, or temporary …
Read More

Express Inhibitor Test

The Express Inhibitor Test provides a rapid on-site analysis of the concentration of all Fernox Protectors, and other molybdate based inhibitors, in central heating system water. After te…
Read More

Instant System Test

The Instant System Test is a convenient, easy-to-use method of testing the system water quality at the job site. After testing a PDF certificate will be generated automatically and sent to c…
Read More

Diagnostic Water Test

The Diagnostic Water Test is a comprehensive app-based postal laboratory test for heating system water.  Once the sample has completed laboratory testing, the system will generate a …
Read More

Commercial Fill Water Test

The Commercial Fill Water  Test is a paperless, smart phone driven, postal laboratory service designed for commissioning monitoring, and maintaining commercial heating systems…
Read More

Commercial Water Quality Test

The Commercial Water Quality Test is a paperless, smart phone driven, postal laboratory service designed for commissioning monitoring, and maintaining commercial heating systems.  …
Read More

Water Quality Test

The Water Quality Test is a paperless, smart phone driven, postal laboratory service that provides a diagnostic check of five key water quality criteria to guard against the causes of centra…
Read More

Water Testing Countries & Availability

The table below shows the availability of each Fernox water test in different countries. Please note that our test availability is currently limited to certain countries as we transition our apps t…
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On-site Water Test Comparison

The table below presents a comprehensive overview of the various chemical testing parameters analyzed in the Fernox postal water testing products. These parameters are carefully selected to assess the…
Read More

Postal Water Test Comparison

The table below presents a comprehensive overview of the various chemical testing parameters analyzed in the Fernox postal water testing products. These parameters are carefully selected to assess the…
Read More

System Health Check

The System Health Check is a premier postal sampling service which provides accurate laboratory diagnosis of central heating problems, in order to ensure the co…
Read More
Useful Resources

Visit this comparison page to find the most appropriate test for you.

On-site Test Comparison
Postal Test Comparison

Explore country-specific availability of Fernox water tests. 

Check availability

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Stockists

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We are continuously adding more guides and FAQ’s to help you set up on the Fernox App, however if you are unable to find an answer to your question, it’s time to reach out.

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Country

Austria

Belgium (fr)

Belgium (nl)

China

Czech Republic

Denmark

France

Germany

Greece

Hungary

Ireland

Italy

Netherlands

Poland

Romania

Slovakia

Spain

Sweden

Turkey

United Kingdom

United States